Vulnerability-Lookup

CNVD-2015-05063

Vulnerability from cnvd - Published: 2015-07-31

Title

libuser本地提权漏洞

Description

libuser是一款用于操作和管理用户和组账户的标准接口库。 libuser中存在本地提权漏洞。本地攻击者可利用该漏洞获取root权限。

Severity

中

Patch Name

libuser本地提权漏洞的补丁

Patch Description

libuser是一款用于操作和管理用户和组账户的标准接口库。 libuser中存在本地提权漏洞。本地攻击者可利用该漏洞获取root权限。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

用户可联系供应商获得补丁信息： https://fedorahosted.org/libuser/

Reference

http://www.securityfocus.com/bid/76022

Impacted products

Name
libuser libuser

Show details on source website

JSON

To clipboard

{
  "bids": {
    "bid": {
      "bidNumber": "76022"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2015-3246"
    }
  },
  "description": "libuser\u662f\u4e00\u6b3e\u7528\u4e8e\u64cd\u4f5c\u548c\u7ba1\u7406\u7528\u6237\u548c\u7ec4\u8d26\u6237\u7684\u6807\u51c6\u63a5\u53e3\u5e93\u3002\r\n\r\nlibuser\u4e2d\u5b58\u5728\u672c\u5730\u63d0\u6743\u6f0f\u6d1e\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u83b7\u53d6root\u6743\u9650\u3002",
  "discovererName": "Qualys",
  "formalWay": "\u7528\u6237\u53ef\u8054\u7cfb\u4f9b\u5e94\u5546\u83b7\u5f97\u8865\u4e01\u4fe1\u606f\uff1a\r\nhttps://fedorahosted.org/libuser/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2015-05063",
  "openTime": "2015-07-31",
  "patchDescription": "libuser\u662f\u4e00\u6b3e\u7528\u4e8e\u64cd\u4f5c\u548c\u7ba1\u7406\u7528\u6237\u548c\u7ec4\u8d26\u6237\u7684\u6807\u51c6\u63a5\u53e3\u5e93\u3002 \r\n\r\nlibuser\u4e2d\u5b58\u5728\u672c\u5730\u63d0\u6743\u6f0f\u6d1e\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u83b7\u53d6root\u6743\u9650\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": "libuser\u672c\u5730\u63d0\u6743\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "libuser libuser"
  },
  "referenceLink": "http://www.securityfocus.com/bid/76022",
  "serverity": "\u4e2d",
  "submitTime": "2015-07-30",
  "title": "libuser\u672c\u5730\u63d0\u6743\u6f0f\u6d1e"
}

CVE-2015-3246 (GCVE-0-2015-3246)

Vulnerability from cvelistv5 – Published: 2015-08-11 14:00 – Updated: 2026-08-27 03:56

Summary

libuser before 0.56.13-8 and 0.60 before 0.60-7, as used in the userhelper program in the usermode package, directly modifies /etc/passwd, which allows local users to cause a denial of service (inconsistent file state) by causing an error during the modification. NOTE: this issue can be combined with CVE-2015-3245 to gain privileges.

Severity

5.1 (Medium)


                        
                          CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: active Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-26 00:00 UTC

CWE

n/a
CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition

Assigner

redhat redhat root

References

12 references

URL	Tags
http://www.securityfocus.com/bid/76022	vdb-entryx_refsource_BID
http://lists.fedoraproject.org/pipermail/package-…	vendor-advisoryx_refsource_FEDORA
https://www.exploit-db.com/exploits/44633/	exploitx_refsource_EXPLOIT-DB
https://access.redhat.com/articles/1537873	x_refsource_CONFIRM
http://rhn.redhat.com/errata/RHSA-2015-1482.html	vendor-advisoryx_refsource_REDHAT
http://lists.fedoraproject.org/pipermail/package-…	vendor-advisoryx_refsource_FEDORA
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
https://www.qualys.com/2015/07/23/cve-2015-3245-c…	x_refsource_MISC
http://www.securitytracker.com/id/1033040	vdb-entryx_refsource_SECTRACK
http://rhn.redhat.com/errata/RHSA-2015-1483.html	vendor-advisoryx_refsource_REDHAT
https://blog.talosintelligence.com/uat-10147-chin…	third-party-advisory
https://www.cisa.gov/known-exploited-vulnerabilit…	government-resource

Date Public

2015-07-23 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-06T05:39:32.107Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "76022",
            "tags": [
              "vdb-entry",
              "x_refsource_BID",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/76022"
          },
          {
            "name": "FEDORA-2015-12301",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-July/162947.html"
          },
          {
            "name": "44633",
            "tags": [
              "exploit",
              "x_refsource_EXPLOIT-DB",
              "x_transferred"
            ],
            "url": "https://www.exploit-db.com/exploits/44633/"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/articles/1537873"
          },
          {
            "name": "RHSA-2015:1482",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "http://rhn.redhat.com/errata/RHSA-2015-1482.html"
          },
          {
            "name": "FEDORA-2015-12064",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-August/163044.html"
          },
          {
            "name": "openSUSE-SU-2015:1332",
            "tags": [
              "vendor-advisory",
              "x_refsource_SUSE",
              "x_transferred"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00000.html"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.qualys.com/2015/07/23/cve-2015-3245-cve-2015-3246/cve-2015-3245-cve-2015-3246.txt"
          },
          {
            "name": "1033040",
            "tags": [
              "vdb-entry",
              "x_refsource_SECTRACK",
              "x_transferred"
            ],
            "url": "http://www.securitytracker.com/id/1033040"
          },
          {
            "name": "RHSA-2015:1483",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "http://rhn.redhat.com/errata/RHSA-2015-1483.html"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "HIGH",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 5.1,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2015-3246",
                "options": [
                  {
                    "Exploitation": "active"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-26T00:00:00+00:00",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          },
          {
            "other": {
              "content": {
                "dateAdded": "2026-08-26",
                "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2015-3246"
              },
              "type": "kev"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-367",
                "description": "CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-08-27T03:56:42.310Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "third-party-advisory"
            ],
            "url": "https://blog.talosintelligence.com/uat-10147-chinese-speaking-adversary-integrates-agentic-ai-into-post-compromise-operations/"
          },
          {
            "tags": [
              "government-resource"
            ],
            "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2015-3246"
          }
        ],
        "timeline": [
          {
            "lang": "en",
            "time": "2026-08-26T00:00:00.000Z",
            "value": "CVE-2015-3246 added to CISA KEV"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2015-07-23T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "libuser before 0.56.13-8 and 0.60 before 0.60-7, as used in the userhelper program in the usermode package, directly modifies /etc/passwd, which allows local users to cause a denial of service (inconsistent file state) by causing an error during the modification. NOTE: this issue can be combined with CVE-2015-3245 to gain privileges."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2018-05-19T09:57:01.000Z",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "name": "76022",
          "tags": [
            "vdb-entry",
            "x_refsource_BID"
          ],
          "url": "http://www.securityfocus.com/bid/76022"
        },
        {
          "name": "FEDORA-2015-12301",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-July/162947.html"
        },
        {
          "name": "44633",
          "tags": [
            "exploit",
            "x_refsource_EXPLOIT-DB"
          ],
          "url": "https://www.exploit-db.com/exploits/44633/"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://access.redhat.com/articles/1537873"
        },
        {
          "name": "RHSA-2015:1482",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "http://rhn.redhat.com/errata/RHSA-2015-1482.html"
        },
        {
          "name": "FEDORA-2015-12064",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-August/163044.html"
        },
        {
          "name": "openSUSE-SU-2015:1332",
          "tags": [
            "vendor-advisory",
            "x_refsource_SUSE"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00000.html"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.qualys.com/2015/07/23/cve-2015-3245-cve-2015-3246/cve-2015-3245-cve-2015-3246.txt"
        },
        {
          "name": "1033040",
          "tags": [
            "vdb-entry",
            "x_refsource_SECTRACK"
          ],
          "url": "http://www.securitytracker.com/id/1033040"
        },
        {
          "name": "RHSA-2015:1483",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "http://rhn.redhat.com/errata/RHSA-2015-1483.html"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2015-3246",
    "datePublished": "2015-08-11T14:00:00.000Z",
    "dateReserved": "2015-04-10T00:00:00.000Z",
    "dateUpdated": "2026-08-27T03:56:42.310Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.