CWE-94
Allowed-with-ReviewImproper Control of Generation of Code ('Code Injection')
Abstraction: Base · Status: Draft
The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.
8350 vulnerabilities reference this CWE, most recent first.
GHSA-27WP-JVHW-V4XP
Vulnerability from github – Published: 2024-08-08 14:48 – Updated: 2024-08-08 17:00Impact
Shopware has a new Twig Tag sw_silent_feature_call which silences deprecation messages while triggered in this tag.
It accepts as parameter a string the feature flag name to silence, but this parameter is not escaped properly and allows execution of code.
Patches
Update to Shopware 6.6.5.1 or 6.5.8.13
Workarounds
For older versions of 6.2, 6.3, and 6.4, corresponding security measures are also available via a plugin. For the full range of functions, we recommend updating to the latest Shopware version.
{
"affected": [
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 6.5.8.12"
},
"package": {
"ecosystem": "Packagist",
"name": "shopware/core"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "6.5.8.13"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 6.5.8.12"
},
"package": {
"ecosystem": "Packagist",
"name": "shopware/platform"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "6.5.8.13"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 6.6.5.0"
},
"package": {
"ecosystem": "Packagist",
"name": "shopware/platform"
},
"ranges": [
{
"events": [
{
"introduced": "6.6.0.0"
},
{
"fixed": "6.6.5.1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 6.6.5.0"
},
"package": {
"ecosystem": "Packagist",
"name": "shopware/core"
},
"ranges": [
{
"events": [
{
"introduced": "6.6.0.0"
},
{
"fixed": "6.6.5.1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2024-42355"
],
"database_specific": {
"cwe_ids": [
"CWE-1336",
"CWE-94"
],
"github_reviewed": true,
"github_reviewed_at": "2024-08-08T14:48:03Z",
"nvd_published_at": "2024-08-08T15:15:18Z",
"severity": "HIGH"
},
"details": "### Impact\n\nShopware has a new Twig Tag `sw_silent_feature_call` which silences deprecation messages while triggered in this tag.\nIt accepts as parameter a string the feature flag name to silence, but this parameter is not escaped properly and allows execution of code.\n\n### Patches\nUpdate to Shopware 6.6.5.1 or 6.5.8.13\n\n### Workarounds\nFor older versions of 6.2, 6.3, and 6.4, corresponding security measures are also available via a plugin. For the full range of functions, we recommend updating to the latest Shopware version.\n",
"id": "GHSA-27wp-jvhw-v4xp",
"modified": "2024-08-08T17:00:14Z",
"published": "2024-08-08T14:48:03Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/shopware/shopware/security/advisories/GHSA-27wp-jvhw-v4xp"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-42355"
},
{
"type": "WEB",
"url": "https://github.com/shopware/core/commit/a784aa1cec0624e36e0ee4d41aeebaed40e0442f"
},
{
"type": "WEB",
"url": "https://github.com/shopware/core/commit/d35ee2eda5c995faeb08b3dad127eab65c64e2a2"
},
{
"type": "WEB",
"url": "https://github.com/shopware/shopware/commit/445c6763cc093fbd651e0efaa4150deae4ae60da"
},
{
"type": "WEB",
"url": "https://github.com/shopware/shopware/commit/8504ba7e56e53add6a1d5b9d45015e3d899cd0ac"
},
{
"type": "PACKAGE",
"url": "https://github.com/shopware/shopware"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "Shopware vulnerable to Server Side Template Injection in Twig using deprecation silence tag"
}
GHSA-283M-G47H-4XP3
Vulnerability from github – Published: 2022-05-24 22:00 – Updated: 2022-05-24 22:00OpenEMR v5.0.1-6 allows code execution.
{
"affected": [],
"aliases": [
"CVE-2019-8371"
],
"database_specific": {
"cwe_ids": [
"CWE-94"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-09-16T17:15:00Z",
"severity": "HIGH"
},
"details": "OpenEMR v5.0.1-6 allows code execution.",
"id": "GHSA-283m-g47h-4xp3",
"modified": "2022-05-24T22:00:36Z",
"published": "2022-05-24T22:00:36Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-8371"
},
{
"type": "WEB",
"url": "https://know.bishopfox.com/advisories/openemr-5-0-16-remote-code-execution-cross-site-scripting"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-284F-R3F8-MCP6
Vulnerability from github – Published: 2022-05-02 03:37 – Updated: 2022-05-02 03:37PHP remote file inclusion vulnerability in toolbar_ext.php in the MediaLibrary (com_media_library) component 1.5.3 Basic for Joomla! allows remote attackers to execute arbitrary PHP code via a URL in the mosConfig_absolute_path parameter.
{
"affected": [],
"aliases": [
"CVE-2009-2634"
],
"database_specific": {
"cwe_ids": [
"CWE-94"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2009-07-28T19:30:00Z",
"severity": "HIGH"
},
"details": "PHP remote file inclusion vulnerability in toolbar_ext.php in the MediaLibrary (com_media_library) component 1.5.3 Basic for Joomla! allows remote attackers to execute arbitrary PHP code via a URL in the mosConfig_absolute_path parameter.",
"id": "GHSA-284f-r3f8-mcp6",
"modified": "2022-05-02T03:37:12Z",
"published": "2022-05-02T03:37:12Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2009-2634"
},
{
"type": "WEB",
"url": "http://www.exploit-db.com/exploits/8912"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-2858-8CFX-69M9
Vulnerability from github – Published: 2024-04-10 17:12 – Updated: 2025-09-26 16:30Impact
XWiki's database search allows remote code execution through the search text. This allows remote code execution for any visitor of a public wiki or user of a closed wiki as the database search is by default accessible for all users. This impacts the confidentiality, integrity and availability of the whole XWiki installation.
To reproduce on an instance, without being logged in, go to <hostname>/xwiki/bin/get/Main/DatabaseSearch?outputSyntax=plain&text=%7D%7D%7D%7B%7Basync%20async%3Dfalse%7D%7D%7B%7Bgroovy%7D%7Dprintln%28%22Hello%20from%22%20%2B%20%22%20search%20text%3A%22%20%2B%20%2823%20%2B%2019%29%29%7B%7B%2Fgroovy%7D%7D%7B%7B%2Fasync%7D%7D%20. If the title of the RSS channel contains Hello from search text:42, the instance is vulnerable.
Patches
This vulnerability has been patched in XWiki 14.10.20, 15.5.4 and 15.10RC1.
Workarounds
It is possible to manually apply this patch to the page Main.DatabaseSearch. Alternatively, unless database search is explicitly used by users, this page can be deleted as this is not the default search interface of XWiki.
References
- https://jira.xwiki.org/browse/XWIKI-21472
- https://github.com/xwiki/xwiki-platform/commit/95bdd6cc6298acdf7f8f21298d40eeb8390a8565
{
"affected": [
{
"package": {
"ecosystem": "Maven",
"name": "org.xwiki.platform:xwiki-platform-search-ui"
},
"ranges": [
{
"events": [
{
"introduced": "2.4-milestone-1"
},
{
"fixed": "14.10.20"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Maven",
"name": "org.xwiki.platform:xwiki-platform-search-ui"
},
"ranges": [
{
"events": [
{
"introduced": "15.0-rc-1"
},
{
"fixed": "15.5.4"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Maven",
"name": "org.xwiki.platform:xwiki-platform-search-ui"
},
"ranges": [
{
"events": [
{
"introduced": "15.6-rc-1"
},
{
"fixed": "15.10-rc-1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2024-31982"
],
"database_specific": {
"cwe_ids": [
"CWE-94",
"CWE-95"
],
"github_reviewed": true,
"github_reviewed_at": "2024-04-10T17:12:47Z",
"nvd_published_at": "2024-04-10T20:15:08Z",
"severity": "CRITICAL"
},
"details": "### Impact\nXWiki\u0027s database search allows remote code execution through the search text. This allows remote code execution for any visitor of a public wiki or user of a closed wiki as the database search is by default accessible for all users. This impacts the confidentiality, integrity and availability of the whole XWiki installation.\n\nTo reproduce on an instance, without being logged in, go to `\u003chostname\u003e/xwiki/bin/get/Main/DatabaseSearch?outputSyntax=plain\u0026text=%7D%7D%7D%7B%7Basync%20async%3Dfalse%7D%7D%7B%7Bgroovy%7D%7Dprintln%28%22Hello%20from%22%20%2B%20%22%20search%20text%3A%22%20%2B%20%2823%20%2B%2019%29%29%7B%7B%2Fgroovy%7D%7D%7B%7B%2Fasync%7D%7D%20`. If the title of the RSS channel contains `Hello from search text:42`, the instance is vulnerable.\n\n### Patches\nThis vulnerability has been patched in XWiki 14.10.20, 15.5.4 and 15.10RC1.\n\n### Workarounds\nIt is possible to manually apply [this patch](https://github.com/xwiki/xwiki-platform/commit/95bdd6cc6298acdf7f8f21298d40eeb8390a8565#diff-ef3314b8bb489e5368618ea1940c59098b18ec2246cc65fe337ae636de87e404) to the page `Main.DatabaseSearch`. Alternatively, unless database search is explicitly used by users, this page can be deleted as this is not the default search interface of XWiki.\n\n### References\n* https://jira.xwiki.org/browse/XWIKI-21472\n* https://github.com/xwiki/xwiki-platform/commit/95bdd6cc6298acdf7f8f21298d40eeb8390a8565",
"id": "GHSA-2858-8cfx-69m9",
"modified": "2025-09-26T16:30:44Z",
"published": "2024-04-10T17:12:47Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-2858-8cfx-69m9"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-31982"
},
{
"type": "WEB",
"url": "https://github.com/xwiki/xwiki-platform/commit/3c9e4bb04286de94ad24854026a09fa967538e31"
},
{
"type": "WEB",
"url": "https://github.com/xwiki/xwiki-platform/commit/459e968be8740c8abc2a168196ce21e5ba93cfb8"
},
{
"type": "WEB",
"url": "https://github.com/xwiki/xwiki-platform/commit/95bdd6cc6298acdf7f8f21298d40eeb8390a8565"
},
{
"type": "PACKAGE",
"url": "https://github.com/xwiki/xwiki-platform"
},
{
"type": "WEB",
"url": "https://jira.xwiki.org/browse/XWIKI-21472"
},
{
"type": "WEB",
"url": "https://www.vicarius.io/vsociety/posts/cve-2024-31982-detect-xwiki-vulnerability"
},
{
"type": "WEB",
"url": "https://www.vicarius.io/vsociety/posts/cve-2024-31982-xwiki-mitigation-vulnerability"
},
{
"type": "WEB",
"url": "https://www.vicarius.io/vsociety/posts/xwiki-rce-cve-2024-31982"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H",
"type": "CVSS_V4"
}
],
"summary": "XWiki Platform: Remote code execution as guest via DatabaseSearch"
}
GHSA-2859-2HR6-F86V
Vulnerability from github – Published: 2022-05-24 17:22 – Updated: 2025-10-22 00:31In BIG-IP versions 15.0.0-15.1.0.3, 14.1.0-14.1.2.5, 13.1.0-13.1.3.3, 12.1.0-12.1.5.1, and 11.6.1-11.6.5.1, the Traffic Management User Interface (TMUI), also referred to as the Configuration utility, has a Remote Code Execution (RCE) vulnerability in undisclosed pages.
{
"affected": [],
"aliases": [
"CVE-2020-5902"
],
"database_specific": {
"cwe_ids": [
"CWE-22",
"CWE-94"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-07-01T15:15:00Z",
"severity": "HIGH"
},
"details": "In BIG-IP versions 15.0.0-15.1.0.3, 14.1.0-14.1.2.5, 13.1.0-13.1.3.3, 12.1.0-12.1.5.1, and 11.6.1-11.6.5.1, the Traffic Management User Interface (TMUI), also referred to as the Configuration utility, has a Remote Code Execution (RCE) vulnerability in undisclosed pages.",
"id": "GHSA-2859-2hr6-f86v",
"modified": "2025-10-22T00:31:56Z",
"published": "2022-05-24T17:22:15Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-5902"
},
{
"type": "WEB",
"url": "https://badpackets.net/over-3000-f5-big-ip-endpoints-vulnerable-to-cve-2020-5902"
},
{
"type": "WEB",
"url": "https://github.com/Critical-Start/Team-Ares/tree/master/CVE-2020-5902"
},
{
"type": "WEB",
"url": "https://support.f5.com/csp/article/K52145254"
},
{
"type": "WEB",
"url": "https://swarm.ptsecurity.com/rce-in-f5-big-ip"
},
{
"type": "WEB",
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-5902"
},
{
"type": "WEB",
"url": "https://www.criticalstart.com/f5-big-ip-remote-code-execution-exploit"
},
{
"type": "WEB",
"url": "https://www.kb.cert.org/vuls/id/290915"
},
{
"type": "WEB",
"url": "http://packetstormsecurity.com/files/158333/BIG-IP-TMUI-Remote-Code-Execution.html"
},
{
"type": "WEB",
"url": "http://packetstormsecurity.com/files/158334/BIG-IP-TMUI-Remote-Code-Execution.html"
},
{
"type": "WEB",
"url": "http://packetstormsecurity.com/files/158366/F5-BIG-IP-TMUI-Directory-Traversal-File-Upload-Code-Execution.html"
},
{
"type": "WEB",
"url": "http://packetstormsecurity.com/files/158414/Checker-CVE-2020-5902.html"
},
{
"type": "WEB",
"url": "http://packetstormsecurity.com/files/158581/F5-Big-IP-13.1.3-Build-0.0.6-Local-File-Inclusion.html"
},
{
"type": "WEB",
"url": "http://packetstormsecurity.com/files/175671/F5-BIG-IP-TMUI-Directory-Traversal-File-Upload-Code-Execution.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-285C-6WQ3-96WH
Vulnerability from github – Published: 2022-05-14 03:20 – Updated: 2022-05-14 03:20Axublog 1.1.0 allows remote Code Execution as demonstrated by injection of PHP code (contained in the webkeywords parameter) into the cmsconfig.php file.
{
"affected": [],
"aliases": [
"CVE-2018-10740"
],
"database_specific": {
"cwe_ids": [
"CWE-94"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-05-04T18:29:00Z",
"severity": "CRITICAL"
},
"details": "Axublog 1.1.0 allows remote Code Execution as demonstrated by injection of PHP code (contained in the webkeywords parameter) into the cmsconfig.php file.",
"id": "GHSA-285c-6wq3-96wh",
"modified": "2022-05-14T03:20:02Z",
"published": "2022-05-14T03:20:02Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-10740"
},
{
"type": "WEB",
"url": "https://github.com/axublog/axublog/issues/1"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-285H-WRPM-68WF
Vulnerability from github – Published: 2023-07-31 15:30 – Updated: 2024-04-04 06:26Remote Code Execution vulnerability in DedeCMS through 5.7.109 allows remote attackers to run arbitrary code via crafted POST request to /dede/tpl.php.
{
"affected": [],
"aliases": [
"CVE-2023-34842"
],
"database_specific": {
"cwe_ids": [
"CWE-94"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-07-31T14:15:10Z",
"severity": "CRITICAL"
},
"details": "Remote Code Execution vulnerability in DedeCMS through 5.7.109 allows remote attackers to run arbitrary code via crafted POST request to /dede/tpl.php.",
"id": "GHSA-285h-wrpm-68wf",
"modified": "2024-04-04T06:26:44Z",
"published": "2023-07-31T15:30:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-34842"
},
{
"type": "WEB",
"url": "https://www.dedecms.com"
},
{
"type": "WEB",
"url": "http://dedecms.com"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-285Q-4MR9-9QMP
Vulnerability from github – Published: 2022-05-17 02:44 – Updated: 2022-05-17 02:44SetsucoCMS all versions allows remote authenticated attackers to conduct code injection attacks via unspecified vectors.
{
"affected": [],
"aliases": [
"CVE-2016-4895"
],
"database_specific": {
"cwe_ids": [
"CWE-94"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-04-12T22:59:00Z",
"severity": "HIGH"
},
"details": "SetsucoCMS all versions allows remote authenticated attackers to conduct code injection attacks via unspecified vectors.",
"id": "GHSA-285q-4mr9-9qmp",
"modified": "2022-05-17T02:44:23Z",
"published": "2022-05-17T02:44:23Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2016-4895"
},
{
"type": "WEB",
"url": "http://jvn.jp/en/jp/JVN80157683/index.html"
},
{
"type": "WEB",
"url": "http://jvndb.jvn.jp/en/contents/2016/JVNDB-2016-000200.html"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/93475"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-286F-H89F-6GF2
Vulnerability from github – Published: 2023-11-28 15:30 – Updated: 2023-12-04 21:30A dylib injection vulnerability in XMachOViewer 0.04 allows attackers to compromise integrity. By exploiting this, unauthorized code can be injected into the product's processes, potentially leading to remote control and unauthorized access to sensitive user data.
{
"affected": [],
"aliases": [
"CVE-2023-49313"
],
"database_specific": {
"cwe_ids": [
"CWE-94"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-11-28T15:15:07Z",
"severity": "CRITICAL"
},
"details": "A dylib injection vulnerability in XMachOViewer 0.04 allows attackers to compromise integrity. By exploiting this, unauthorized code can be injected into the product\u0027s processes, potentially leading to remote control and unauthorized access to sensitive user data.",
"id": "GHSA-286f-h89f-6gf2",
"modified": "2023-12-04T21:30:52Z",
"published": "2023-11-28T15:30:22Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-49313"
},
{
"type": "WEB",
"url": "https://github.com/horsicq/XMachOViewer"
},
{
"type": "WEB",
"url": "https://github.com/louiselalanne/CVE-2023-49313"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-28GX-X232-F29C
Vulnerability from github – Published: 2022-05-14 01:32 – Updated: 2022-05-14 01:32The Microsoft Time component in DATIME.DLL in Microsoft Windows XP SP2 and SP3 and Server 2003 SP2 allows remote attackers to execute arbitrary code via a crafted web site that leverages an unspecified "binary behavior" in Internet Explorer, aka "Microsoft Time Remote Code Execution Vulnerability."
{
"affected": [],
"aliases": [
"CVE-2011-3397"
],
"database_specific": {
"cwe_ids": [
"CWE-94"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2011-12-14T00:55:00Z",
"severity": "HIGH"
},
"details": "The Microsoft Time component in DATIME.DLL in Microsoft Windows XP SP2 and SP3 and Server 2003 SP2 allows remote attackers to execute arbitrary code via a crafted web site that leverages an unspecified \"binary behavior\" in Internet Explorer, aka \"Microsoft Time Remote Code Execution Vulnerability.\"",
"id": "GHSA-28gx-x232-f29c",
"modified": "2022-05-14T01:32:15Z",
"published": "2022-05-14T01:32:15Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2011-3397"
},
{
"type": "WEB",
"url": "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-090"
},
{
"type": "WEB",
"url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14735"
},
{
"type": "WEB",
"url": "http://www.us-cert.gov/cas/techalerts/TA11-347A.html"
}
],
"schema_version": "1.4.0",
"severity": []
}
Mitigation
Strategy: Refactoring
Refactor your program so that you do not have to dynamically generate code.
Mitigation
- Run your code in a "jail" or similar sandbox environment that enforces strict boundaries between the process and the operating system. This may effectively restrict which code can be executed by your product.
- Examples include the Unix chroot jail and AppArmor. In general, managed code may provide some protection.
- This may not be a feasible solution, and it only limits the impact to the operating system; the rest of your application may still be subject to compromise.
- Be careful to avoid CWE-243 and other weaknesses related to jails.
Mitigation MIT-5
Strategy: Input Validation
- Assume all input is malicious. Use an "accept known good" input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. Reject any input that does not strictly conform to specifications, or transform it into something that does.
- When performing input validation, consider all potentially relevant properties, including length, type of input, the full range of acceptable values, missing or extra inputs, syntax, consistency across related fields, and conformance to business rules. As an example of business rule logic, "boat" may be syntactically valid because it only contains alphanumeric characters, but it is not valid if the input is only expected to contain colors such as "red" or "blue."
- Do not rely exclusively on looking for malicious or malformed inputs. This is likely to miss at least one undesirable input, especially if the code's environment changes. This can give attackers enough room to bypass the intended validation. However, denylists can be useful for detecting potential attacks or determining which inputs are so malformed that they should be rejected outright.
- To reduce the likelihood of code injection, use stringent allowlists that limit which constructs are allowed. If you are dynamically constructing code that invokes a function, then verifying that the input is alphanumeric might be insufficient. An attacker might still be able to reference a dangerous function that you did not intend to allow, such as system(), exec(), or exit().
Mitigation
Use dynamic tools and techniques that interact with the product using large test suites with many diverse inputs, such as fuzz testing (fuzzing), robustness testing, and fault injection. The product's operation may slow down, but it should not become unstable, crash, or generate incorrect results.
Mitigation MIT-32
Strategy: Compilation or Build Hardening
Run the code in an environment that performs automatic taint propagation and prevents any command execution that uses tainted variables, such as Perl's "-T" switch. This will force the program to perform validation steps that remove the taint, although you must be careful to correctly validate your inputs so that you do not accidentally mark dangerous inputs as untainted (see CWE-183 and CWE-184).
Mitigation MIT-32
Strategy: Environment Hardening
Run the code in an environment that performs automatic taint propagation and prevents any command execution that uses tainted variables, such as Perl's "-T" switch. This will force the program to perform validation steps that remove the taint, although you must be careful to correctly validate your inputs so that you do not accidentally mark dangerous inputs as untainted (see CWE-183 and CWE-184).
Mitigation
For Python programs, it is frequently encouraged to use the ast.literal_eval() function instead of eval, since it is intentionally designed to avoid executing code. However, an adversary could still cause excessive memory or stack consumption via deeply nested structures [REF-1372], so the python documentation discourages use of ast.literal_eval() on untrusted data [REF-1373].
CAPEC-242: Code Injection
An adversary exploits a weakness in input validation on the target to inject new code into that which is currently executing. This differs from code inclusion in that code inclusion involves the addition or replacement of a reference to a code file, which is subsequently loaded by the target and used as part of the code of some application.
CAPEC-35: Leverage Executable Code in Non-Executable Files
An attack of this type exploits a system's trust in configuration and resource files. When the executable loads the resource (such as an image file or configuration file) the attacker has modified the file to either execute malicious code directly or manipulate the target process (e.g. application server) to execute based on the malicious configuration parameters. Since systems are increasingly interrelated mashing up resources from local and remote sources the possibility of this attack occurring is high.
CAPEC-77: Manipulating User-Controlled Variables
This attack targets user controlled variables (DEBUG=1, PHP Globals, and So Forth). An adversary can override variables leveraging user-supplied, untrusted query variables directly used on the application server without any data sanitization. In extreme cases, the adversary can change variables controlling the business logic of the application. For instance, in languages like PHP, a number of poorly set default configurations may allow the user to override variables.