Vulnerability-Lookup

CNVD-2015-04464

Vulnerability from cnvd - Published: 2015-07-15

Title

Linux-PAM '_unix_run_helper_binary()'函数拒绝服务漏洞

Description

Linux-PAM（也称PAM）是一种用于Linux平台中的认证机制，它通过提供一些动态链接库和一套统一的API，使系统管理员可以自由选择应用程序使用的验证机制。 Linux-PAM中存在拒绝服务漏洞。攻击者可利用该漏洞造成拒绝服务，获取有效的用户账户，有助于进一步实施暴力破解攻击。

Severity

中

Patch Name

Linux-PAM '_unix_run_helper_binary()'函数拒绝服务漏洞的补丁

Patch Description

Linux-PAM（也称PAM）是一种用于Linux平台中的认证机制，它通过提供一些动态链接库和一套统一的API，使系统管理员可以自由选择应用程序使用的验证机制。Linux-PAM中存在拒绝服务漏洞。攻击者可利用该漏洞造成拒绝服务，获取有效的用户账户，有助于进一步实施暴力破解攻击。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

目前厂商已经发布了升级补丁以修复此安全问题，详情请关注厂商主页： http://www.linux-pam.org/

Reference

http://www.securityfocus.com/bid/75428

Impacted products

Name
Linux-PAM Linux-PAM

Show details on source website

JSON

To clipboard

{
  "bids": {
    "bid": {
      "bidNumber": "75428"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2015-3238"
    }
  },
  "description": "Linux-PAM\uff08\u4e5f\u79f0PAM\uff09\u662f\u4e00\u79cd\u7528\u4e8eLinux\u5e73\u53f0\u4e2d\u7684\u8ba4\u8bc1\u673a\u5236\uff0c\u5b83\u901a\u8fc7\u63d0\u4f9b\u4e00\u4e9b\u52a8\u6001\u94fe\u63a5\u5e93\u548c\u4e00\u5957\u7edf\u4e00\u7684API\uff0c\u4f7f\u7cfb\u7edf\u7ba1\u7406\u5458\u53ef\u4ee5\u81ea\u7531\u9009\u62e9\u5e94\u7528\u7a0b\u5e8f\u4f7f\u7528\u7684\u9a8c\u8bc1\u673a\u5236\u3002\r\n\r\nLinux-PAM\u4e2d\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff0c\u83b7\u53d6\u6709\u6548\u7684\u7528\u6237\u8d26\u6237\uff0c\u6709\u52a9\u4e8e\u8fdb\u4e00\u6b65\u5b9e\u65bd\u66b4\u529b\u7834\u89e3\u653b\u51fb\u3002",
  "discovererName": "Dmitry V. Levin",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u7ecf\u53d1\u5e03\u4e86\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6b64\u5b89\u5168\u95ee\u9898\uff0c\u8be6\u60c5\u8bf7\u5173\u6ce8\u5382\u5546\u4e3b\u9875\uff1a\r\nhttp://www.linux-pam.org/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2015-04464",
  "openTime": "2015-07-15",
  "patchDescription": "Linux-PAM\uff08\u4e5f\u79f0PAM\uff09\u662f\u4e00\u79cd\u7528\u4e8eLinux\u5e73\u53f0\u4e2d\u7684\u8ba4\u8bc1\u673a\u5236\uff0c\u5b83\u901a\u8fc7\u63d0\u4f9b\u4e00\u4e9b\u52a8\u6001\u94fe\u63a5\u5e93\u548c\u4e00\u5957\u7edf\u4e00\u7684API\uff0c\u4f7f\u7cfb\u7edf\u7ba1\u7406\u5458\u53ef\u4ee5\u81ea\u7531\u9009\u62e9\u5e94\u7528\u7a0b\u5e8f\u4f7f\u7528\u7684\u9a8c\u8bc1\u673a\u5236\u3002Linux-PAM\u4e2d\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff0c\u83b7\u53d6\u6709\u6548\u7684\u7528\u6237\u8d26\u6237\uff0c\u6709\u52a9\u4e8e\u8fdb\u4e00\u6b65\u5b9e\u65bd\u66b4\u529b\u7834\u89e3\u653b\u51fb\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": "Linux-PAM \u0027_unix_run_helper_binary()\u0027\u51fd\u6570\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Linux-PAM Linux-PAM"
  },
  "referenceLink": "http://www.securityfocus.com/bid/75428",
  "serverity": "\u4e2d",
  "submitTime": "2015-07-10",
  "title": "Linux-PAM \u0027_unix_run_helper_binary()\u0027\u51fd\u6570\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}

CVE-2015-3238 (GCVE-0-2015-3238)

Vulnerability from cvelistv5 – Published: 2015-08-24 14:00 – Updated: 2024-08-06 05:39

Summary

The _unix_run_helper_binary function in the pam_unix module in Linux-PAM (aka pam) before 1.2.1, when unable to directly access passwords, allows local users to enumerate usernames or cause a denial of service (hang) via a large password.

Severity

No CVSS data available.

CWE

Assigner

redhat redhat root

References

13 references

URL	Tags
http://lists.fedoraproject.org/pipermail/package-…	vendor-advisoryx_refsource_FEDORA
http://rhn.redhat.com/errata/RHSA-2015-1640.html	vendor-advisoryx_refsource_REDHAT
http://www.openwall.com/lists/oss-security/2015/0…	mailing-listx_refsource_MLIST
https://bugzilla.redhat.com/show_bug.cgi?id=1228571	x_refsource_CONFIRM
https://www.trustwave.com/Resources/Security-Advi…	x_refsource_MISC
https://security.gentoo.org/glsa/201605-05	vendor-advisoryx_refsource_GENTOO
http://www.ubuntu.com/usn/USN-2935-2	vendor-advisoryx_refsource_UBUNTU
http://www.ubuntu.com/usn/USN-2935-3	vendor-advisoryx_refsource_UBUNTU
http://www.oracle.com/technetwork/security-adviso…	x_refsource_CONFIRM
http://www.ubuntu.com/usn/USN-2935-1	vendor-advisoryx_refsource_UBUNTU
http://lists.fedoraproject.org/pipermail/package-…	vendor-advisoryx_refsource_FEDORA
http://www.securityfocus.com/bid/75428	vdb-entryx_refsource_BID
https://www.trustwave.com/Resources/SpiderLabs-Bl…	x_refsource_MISC

Date Public

2015-06-25 00:00

Show details on NVD website

JSON

To clipboard

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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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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.