Vulnerability-Lookup

CNVD-2018-09770

Vulnerability from cnvd - Published: 2018-05-18

Title

Bouncy Castle BKS-V1存在未明漏洞

Description

Bouncy Castle是一个用于C#和Java应用程序的加密库。BKS-V1是其中的一种秘钥存储格式。 Bouncy Castle BKS-V1中存在安全漏洞，该漏洞源于Bouncy Castle BKS-V1文件所使用HMAC的长度仅为16位。攻击者可利用该漏洞控制BKS-V1密钥库的完整性。

Severity

中

Patch Name

Bouncy Castle BKS-V1存在未明漏洞的补丁

Patch Description

Bouncy Castle是一个用于C#和Java应用程序的加密库。BKS-V1是其中的一种秘钥存储格式。 Bouncy Castle BKS-V1中存在安全漏洞，该漏洞源于Bouncy Castle BKS-V1文件所使用HMAC的长度仅为16位。攻击者可利用该漏洞控制BKS-V1密钥库的完整性。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description

厂商已发布了漏洞修复程序，请及时关注更新： https://www.bouncycastle.org/releasenotes.html

Reference

http://www.securityfocus.com/bid/103453

Impacted products

Name
Bouncy Castle BKS-V1 0

Show details on source website

JSON

To clipboard

{
  "bids": {
    "bid": {
      "bidNumber": "103453"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2018-5382"
    }
  },
  "description": "Bouncy Castle\u662f\u4e00\u4e2a\u7528\u4e8eC#\u548cJava\u5e94\u7528\u7a0b\u5e8f\u7684\u52a0\u5bc6\u5e93\u3002BKS-V1\u662f\u5176\u4e2d\u7684\u4e00\u79cd\u79d8\u94a5\u5b58\u50a8\u683c\u5f0f\u3002\r\n\r\nBouncy Castle BKS-V1\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eBouncy Castle BKS-V1\u6587\u4ef6\u6240\u4f7f\u7528HMAC\u7684\u957f\u5ea6\u4ec5\u4e3a16\u4f4d\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u63a7\u5236BKS-V1\u5bc6\u94a5\u5e93\u7684\u5b8c\u6574\u6027\u3002",
  "discovererName": "Will Dormann",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://www.bouncycastle.org/releasenotes.html",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2018-09770",
  "openTime": "2018-05-18",
  "patchDescription": "Bouncy Castle\u662f\u4e00\u4e2a\u7528\u4e8eC#\u548cJava\u5e94\u7528\u7a0b\u5e8f\u7684\u52a0\u5bc6\u5e93\u3002BKS-V1\u662f\u5176\u4e2d\u7684\u4e00\u79cd\u79d8\u94a5\u5b58\u50a8\u683c\u5f0f\u3002\r\n\r\nBouncy Castle BKS-V1\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eBouncy Castle BKS-V1\u6587\u4ef6\u6240\u4f7f\u7528HMAC\u7684\u957f\u5ea6\u4ec5\u4e3a16\u4f4d\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u63a7\u5236BKS-V1\u5bc6\u94a5\u5e93\u7684\u5b8c\u6574\u6027\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "Bouncy Castle BKS-V1\u5b58\u5728\u672a\u660e\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Bouncy Castle BKS-V1 0"
  },
  "referenceLink": "http://www.securityfocus.com/bid/103453",
  "serverity": "\u4e2d",
  "submitTime": "2018-04-19",
  "title": "Bouncy Castle BKS-V1\u5b58\u5728\u672a\u660e\u6f0f\u6d1e"
}

CVE-2018-5382 (GCVE-0-2018-5382)

Vulnerability from cvelistv5 – Published: 2018-04-16 13:00 – Updated: 2024-09-16 16:27

Title

Bouncy Castle BKS-V1 keystore files vulnerable to trivial hash collisions

Summary

The default BKS keystore use an HMAC that is only 16 bits long, which can allow an attacker to compromise the integrity of a BKS keystore. Bouncy Castle release 1.47 changes the BKS format to a format which uses a 160 bit HMAC instead. This applies to any BKS keystore generated prior to BC 1.47. For situations where people need to create the files for legacy reasons a specific keystore type "BKS-V1" was introduced in 1.49. It should be noted that the use of "BKS-V1" is discouraged by the library authors and should only be used where it is otherwise safe to do so, as in where the use of a 16 bit checksum for the file integrity check is not going to cause a security issue in itself.

Severity

No CVSS data available.

CWE

CWE-327 - Use of a Broken or Risky Cryptographic Algorithm

Assigner

certcc mitre root

References

5 references

URL	Tags
http://www.securityfocus.com/bid/103453	vdb-entryx_refsource_BID
https://access.redhat.com/errata/RHSA-2018:2927	vendor-advisoryx_refsource_REDHAT
https://www.kb.cert.org/vuls/id/306792	third-party-advisoryx_refsource_CERT-VN
https://www.bouncycastle.org/releasenotes.html	x_refsource_MISC
https://www.oracle.com/security-alerts/cpuoct2020.html	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
Legion of the Bouncy Castle	Bouncy Castle	Affected: all , < 1.47 (custom)

Date Public

2012-03-20 00:00

Show details on NVD website

JSON

To clipboard

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              "x_refsource_REDHAT",
              "x_transferred"
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            "url": "https://access.redhat.com/errata/RHSA-2018:2927"
          },
          {
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            "tags": [
              "third-party-advisory",
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            ],
            "url": "https://www.oracle.com/security-alerts/cpuoct2020.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Bouncy Castle",
          "vendor": "Legion of the Bouncy Castle",
          "versions": [
            {
              "lessThan": "1.47",
              "status": "affected",
              "version": "all",
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            }
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      ],
      "datePublic": "2012-03-20T00:00:00.000Z",
      "descriptions": [
        {
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        "dateUpdated": "2021-04-02T18:52:28.000Z",
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        "shortName": "certcc"
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          "url": "https://www.oracle.com/security-alerts/cpuoct2020.html"
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              "refsource": "REDHAT",
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            },
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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.

Detection rules are retrieved from Rulezet.

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.
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Action not permitted

CNVD-2018-09770

CVE-2018-5382 (GCVE-0-2018-5382)

Tags

Sightings

Nomenclature

Related by attack behaviour