cnvd - cnvd-2018-24249

cnvd-2018-24249

Vulnerability from cnvd

Title: Micro Focus openSUSE Leap和SUSE Linux Enterprise PAM访问绕过漏洞

Description:

Micro Focus openSUSE Leap和SUSE Linux Enterprise都是英国Micro Focus公司的不同版本的Linux操作系统。PAM是其中的一个可插拔认证模块。

Micro Focus openSUSE Leap 15.0版本和SUSE Linux Enterprise 15版本中的PAM 1.3.0版本存在访问绕过漏洞，该漏洞源于pam_access.so文件未能正确地处理对IP地址和子网络的过滤，攻击者可借助错误的变量利用该漏洞绕过访问控制。

Severity: 中

Patch Name: Micro Focus openSUSE Leap和SUSE Linux Enterprise PAM访问绕过漏洞的补丁

Patch Description:

Micro Focus openSUSE Leap和SUSE Linux Enterprise都是英国Micro Focus公司的不同版本的Linux操作系统。PAM是其中的一个可插拔认证模块。

Micro Focus openSUSE Leap 15.0版本和SUSE Linux Enterprise 15版本中的PAM 1.3.0版本存在访问绕过漏洞，该漏洞源于pam_access.so文件未能正确地处理对IP地址和子网络的过滤，攻击者可借助错误的变量利用该漏洞绕过访问控制。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.suse.com/

Reference: https://bugzilla.suse.com/show_bug.cgi?id=1115640

Impacted products

Name
['Micro Focus PAM（for SUSE Linux Enterprise 15） 1.3.0', 'Micro Focus PAM（for Micro Focus openSUSE Leap 15.0） 1.3.0']

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2018-17953"
    }
  },
  "description": "Micro Focus openSUSE Leap\u548cSUSE Linux Enterprise\u90fd\u662f\u82f1\u56fdMicro Focus\u516c\u53f8\u7684\u4e0d\u540c\u7248\u672c\u7684Linux\u64cd\u4f5c\u7cfb\u7edf\u3002PAM\u662f\u5176\u4e2d\u7684\u4e00\u4e2a\u53ef\u63d2\u62d4\u8ba4\u8bc1\u6a21\u5757\u3002\n\nMicro Focus openSUSE Leap 15.0\u7248\u672c\u548cSUSE Linux Enterprise 15\u7248\u672c\u4e2d\u7684PAM 1.3.0\u7248\u672c\u5b58\u5728\u8bbf\u95ee\u7ed5\u8fc7\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8epam_access.so\u6587\u4ef6\u672a\u80fd\u6b63\u786e\u5730\u5904\u7406\u5bf9IP\u5730\u5740\u548c\u5b50\u7f51\u7edc\u7684\u8fc7\u6ee4\uff0c\u653b\u51fb\u8005\u53ef\u501f\u52a9\u9519\u8bef\u7684\u53d8\u91cf\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7\u8bbf\u95ee\u63a7\u5236\u3002",
  "discovererName": "Daniel Pecka",
  "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.suse.com/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2018-24249",
  "openTime": "2018-11-29",
  "patchDescription": "Micro Focus openSUSE Leap\u548cSUSE Linux Enterprise\u90fd\u662f\u82f1\u56fdMicro Focus\u516c\u53f8\u7684\u4e0d\u540c\u7248\u672c\u7684Linux\u64cd\u4f5c\u7cfb\u7edf\u3002PAM\u662f\u5176\u4e2d\u7684\u4e00\u4e2a\u53ef\u63d2\u62d4\u8ba4\u8bc1\u6a21\u5757\u3002\r\n\r\nMicro Focus openSUSE Leap 15.0\u7248\u672c\u548cSUSE Linux Enterprise 15\u7248\u672c\u4e2d\u7684PAM 1.3.0\u7248\u672c\u5b58\u5728\u8bbf\u95ee\u7ed5\u8fc7\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8epam_access.so\u6587\u4ef6\u672a\u80fd\u6b63\u786e\u5730\u5904\u7406\u5bf9IP\u5730\u5740\u548c\u5b50\u7f51\u7edc\u7684\u8fc7\u6ee4\uff0c\u653b\u51fb\u8005\u53ef\u501f\u52a9\u9519\u8bef\u7684\u53d8\u91cf\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7\u8bbf\u95ee\u63a7\u5236\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": "Micro Focus openSUSE Leap\u548cSUSE Linux Enterprise PAM\u8bbf\u95ee\u7ed5\u8fc7\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Micro Focus PAM\uff08for SUSE Linux Enterprise 15\uff09 1.3.0",
      "Micro Focus PAM\uff08for Micro Focus openSUSE Leap 15.0\uff09 1.3.0"
    ]
  },
  "referenceLink": "https://bugzilla.suse.com/show_bug.cgi?id=1115640",
  "serverity": "\u4e2d",
  "submitTime": "2018-11-28",
  "title": "Micro Focus openSUSE Leap\u548cSUSE Linux Enterprise PAM\u8bbf\u95ee\u7ed5\u8fc7\u6f0f\u6d1e"
}

CVE-2018-17953 (GCVE-0-2018-17953)

Vulnerability from cvelistv5

Published

2018-11-27 13:00

Modified

2024-09-16 17:28

Severity ?

7.5 (High) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

CWE

CWE-284

Summary

A incorrect variable in a SUSE specific patch for pam_access rule matching in PAM 1.3.0 in openSUSE Leap 15.0 and SUSE Linux Enterprise 15 could lead to pam_access rules not being applied (fail open).

References

▼	URL	Tags
	https://bugzilla.suse.com/show_bug.cgi?id=1115640	x_refsource_CONFIRM

Impacted products

	Vendor	Product	Version
	SUSE	pam	Version: 1.3.0 < 1.3.0 before 2018-11-30

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T11:01:14.706Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://bugzilla.suse.com/show_bug.cgi?id=1115640"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "pam",
          "vendor": "SUSE",
          "versions": [
            {
              "lessThan": "1.3.0 before 2018-11-30",
              "status": "affected",
              "version": "1.3.0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Daniel Pecka"
        }
      ],
      "datePublic": "2018-11-15T00:00:00",
      "descriptions": [
        {
          "lang": "en",
          "value": "A incorrect variable in a SUSE specific patch for pam_access rule matching in PAM 1.3.0 in openSUSE Leap 15.0 and SUSE Linux Enterprise 15 could lead to pam_access rules not being applied (fail open)."
        }
      ],
      "metrics": [
        {
          "cvssV3_0": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
            "version": "3.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-284",
              "description": "CWE-284",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-01-06T16:15:33",
        "orgId": "f81092c5-7f14-476d-80dc-24857f90be84",
        "shortName": "microfocus"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://bugzilla.suse.com/show_bug.cgi?id=1115640"
        }
      ],
      "source": {
        "defect": [
          "1115640"
        ],
        "discovery": "INTERNAL"
      },
      "title": "pam_access does not handle netmask matches correctly",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "security@microfocus.com",
          "DATE_PUBLIC": "2018-11-15T00:00:00.000Z",
          "ID": "CVE-2018-17953",
          "STATE": "PUBLIC",
          "TITLE": "pam_access does not handle netmask matches correctly"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "pam",
                      "version": {
                        "version_data": [
                          {
                            "affected": "\u003c",
                            "version_affected": "\u003c",
                            "version_name": "1.3.0",
                            "version_value": "1.3.0 before 2018-11-30"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "SUSE"
              }
            ]
          }
        },
        "credit": [
          {
            "lang": "eng",
            "value": "Daniel Pecka"
          }
        ],
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "A incorrect variable in a SUSE specific patch for pam_access rule matching in PAM 1.3.0 in openSUSE Leap 15.0 and SUSE Linux Enterprise 15 could lead to pam_access rules not being applied (fail open)."
            }
          ]
        },
        "impact": {
          "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
            "version": "3.0"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-284"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://bugzilla.suse.com/show_bug.cgi?id=1115640",
              "refsource": "CONFIRM",
              "url": "https://bugzilla.suse.com/show_bug.cgi?id=1115640"
            }
          ]
        },
        "source": {
          "defect": [
            "1115640"
          ],
          "discovery": "INTERNAL"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "f81092c5-7f14-476d-80dc-24857f90be84",
    "assignerShortName": "microfocus",
    "cveId": "CVE-2018-17953",
    "datePublished": "2018-11-27T13:00:00Z",
    "dateReserved": "2018-10-03T00:00:00",
    "dateUpdated": "2024-09-16T17:28:34.555Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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