CVE-2017-7823 (GCVE-0-2017-7823)
Vulnerability from cvelistv5 – Published: 2018-06-11 21:00 – Updated: 2024-08-05 16:12
VLAI
EPSS
VEX
Summary
The content security policy (CSP) "sandbox" directive did not create a unique origin for the document, causing it to behave as if the "allow-same-origin" keyword were always specified. This could allow a Cross-Site Scripting (XSS) attack to be launched from unsafe content. This vulnerability affects Firefox < 56, Firefox ESR < 52.4, and Thunderbird < 52.4.
Severity
5.4 (Medium)
CWE
- CSP sandbox directive did not create a unique origin
Assigner
References
12 references
| URL | Tags |
|---|---|
| https://bugzilla.mozilla.org/show_bug.cgi?id=1396320 | x_refsource_CONFIRM |
| http://www.securityfocus.com/bid/101059 | vdb-entryx_refsource_BID |
| https://lists.debian.org/debian-lts-announce/2017… | mailing-listx_refsource_MLIST |
| https://www.mozilla.org/security/advisories/mfsa2… | x_refsource_CONFIRM |
| http://www.securitytracker.com/id/1039465 | vdb-entryx_refsource_SECTRACK |
| https://access.redhat.com/errata/RHSA-2017:2831 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2017:2885 | vendor-advisoryx_refsource_REDHAT |
| https://www.mozilla.org/security/advisories/mfsa2… | x_refsource_CONFIRM |
| https://www.debian.org/security/2017/dsa-4014 | vendor-advisoryx_refsource_DEBIAN |
| https://www.mozilla.org/security/advisories/mfsa2… | x_refsource_CONFIRM |
| https://www.debian.org/security/2017/dsa-3987 | vendor-advisoryx_refsource_DEBIAN |
| https://security.gentoo.org/glsa/201803-14 | vendor-advisoryx_refsource_GENTOO |
Impacted products
3 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 56
(custom)
|
guessed | |
| Mozilla | Firefox ESR |
Affected:
unspecified , < 52.4
(custom)
|
guessed | |
| Mozilla | Thunderbird |
Affected:
unspecified , < 52.4
(custom)
|
guessed |
Date Public
2017-09-28 00:00
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},
"nvd": "{\"cve\":{\"id\":\"CVE-2017-7823\",\"sourceIdentifier\":\"security@mozilla.org\",\"published\":\"2018-06-11T21:29:11.000\",\"lastModified\":\"2025-11-25T17:50:16.803\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"The content security policy (CSP) \\\"sandbox\\\" directive did not create a unique origin for the document, causing it to behave as if the \\\"allow-same-origin\\\" keyword were always specified. This could allow a Cross-Site Scripting (XSS) attack to be launched from unsafe content. This vulnerability affects Firefox \u003c 56, Firefox ESR \u003c 52.4, and Thunderbird \u003c 52.4.\"},{\"lang\":\"es\",\"value\":\"La directiva CSP (Content Security Policy) \\\"sandbox\\\" no creaba un origen \u00fanico para el documento, provocando que se comporte como si estuviera siempre especificada la palabra clave \\\"allow-same-origin\\\". Esto podr\u00eda permitir que se lance un ataque Cross-Site Scripting (XSS) desde contenido no seguro. Esta vulnerabilidad afecta a las versiones anteriores a la 56 de Firefox, las versiones anteriores a la 52.4 de Firefox ESR y las versiones anteriores a la 52.4 de Thunderbird.\"}],\"metrics\":{\"cvssMetricV30\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.0\",\"vectorString\":\"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N\",\"baseScore\":5.4,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"REQUIRED\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.8,\"impactScore\":2.5}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:M/Au:N/C:N/I:P/A:N\",\"baseScore\":4.3,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"MEDIUM\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"NONE\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":8.6,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":true}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-79\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"EE249E1B-A1FD-4E08-AA71-A0E1F10FFE97\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"33C068A4-3780-4EAB-A937-6082DF847564\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"9BBCD86A-E6C7-4444-9D74-F861084090F0\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"51EF4996-72F4-4FA4-814F-F5991E7A8318\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"D99A687E-EAE6-417E-A88E-D0082BC194CD\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux_server_eus:7.4:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"9EC0D196-F7B8-4BDD-9050-779F7A7FBEE4\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"A4E9DD8A-A68B-4A69-8B01-BFF92A2020A8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E5ED5807-55B7-47C5-97A6-03233F4FBC3A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"825ECE2D-E232-46E0-A047-074B34DB1E97\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"16F59A04-14CF-49E2-9973-645477EA09DA\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"C11E6FB0-C8C0-4527-9AA0-CB9B316F8F43\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"DEECE5FC-CACF-4496-A3E7-164736409252\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"52.4.0\",\"matchCriteriaId\":\"98FCE965-6FC4-451D-A526-89EA0EBFB45B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"56.0\",\"matchCriteriaId\":\"52C27207-A6C6-4F3E-AA7F-4CBE552D6C8F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"52.4.0\",\"matchCriteriaId\":\"A6DA61C1-AAB0-494C-A8AD-0CA56643F70A\"}]}]}],\"references\":[{\"url\":\"http://www.securityfocus.com/bid/101059\",\"source\":\"security@mozilla.org\",\"tags\":[\"Third 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Entry\"]},{\"url\":\"https://access.redhat.com/errata/RHSA-2017:2831\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://access.redhat.com/errata/RHSA-2017:2885\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://bugzilla.mozilla.org/show_bug.cgi?id=1396320\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Exploit\",\"Issue Tracking\",\"Patch\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2017/11/msg00000.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://security.gentoo.org/glsa/201803-14\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.debian.org/security/2017/dsa-3987\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.debian.org/security/2017/dsa-4014\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.mozilla.org/security/advisories/mfsa2017-21/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://www.mozilla.org/security/advisories/mfsa2017-22/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://www.mozilla.org/security/advisories/mfsa2017-23/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]}]}}",
"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2025-11-25T18:20:06+00:00",
"cve": "CVE-2017-7823",
"id": "CVE-2017-7823",
"initial_release_date": "2017-09-28T00:00:00+00:00",
"product_status:fixed": "229",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "Mozilla: CSP sandbox directive did not create a unique origin (MFSA 2017-22)",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2017/cve-2017-7823.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "important",
"current_release_date": "2026-08-31T09:07:37Z",
"cve": "CVE-2017-7823",
"id": "CVE-2017-7823",
"initial_release_date": "2023-02-15T04:46:44Z",
"product_status:known_not_affected": "50",
"product_status:recommended": "646",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2017-7823",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2017-7823.json",
"version": "18"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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