cnvd - cnvd-2015-07709

cnvd-2015-07709

Vulnerability from cnvd

Title: strongSwan安全机制绕过漏洞

Description:

strongSwan是一套Linux平台使用的开源的基于IPsec的VPN解决方案。

strongSwan的eap-mschapv2插件中的EAP-MSCHAPv2协议的服务器实现过程中未能正确验证本地状态，允许远程攻击者可发送空的Success消息做为初始Challenge消息的响应绕过身份验证。

Severity: 中

Patch Name: strongSwan安全机制绕过漏洞的补丁

Patch Description:

strongSwan是一套Linux平台使用的开源的基于IPsec的VPN解决方案。

strongSwan的eap-mschapv2插件中的EAP-MSCHAPv2协议的服务器实现过程中未能正确验证本地状态，允许远程攻击者可发送空的Success消息做为初始Challenge消息的响应绕过身份验证。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:

用户可参考如下厂商提供的安全公告获取补丁以修复该漏洞： http://www.ubuntu.com/usn/USN-2811-1

Reference: http://www.ubuntu.com/usn/USN-2811-1

Impacted products

Name
Strongswan Strongswan 4.2.12-5.x(<5.3.4)

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2015-8023"
    }
  },
  "description": "strongSwan\u662f\u4e00\u5957Linux\u5e73\u53f0\u4f7f\u7528\u7684\u5f00\u6e90\u7684\u57fa\u4e8eIPsec\u7684VPN\u89e3\u51b3\u65b9\u6848\u3002\r\n\r\nstrongSwan\u7684eap-mschapv2\u63d2\u4ef6\u4e2d\u7684EAP-MSCHAPv2\u534f\u8bae\u7684\u670d\u52a1\u5668\u5b9e\u73b0\u8fc7\u7a0b\u4e2d\u672a\u80fd\u6b63\u786e\u9a8c\u8bc1\u672c\u5730\u72b6\u6001\uff0c\u5141\u8bb8\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u53d1\u9001\u7a7a\u7684Success\u6d88\u606f\u505a\u4e3a\u521d\u59cbChallenge\u6d88\u606f\u7684\u54cd\u5e94\u7ed5\u8fc7\u8eab\u4efd\u9a8c\u8bc1\u3002",
  "discovererName": "strongSwan",
  "formalWay": "\u7528\u6237\u53ef\u53c2\u8003\u5982\u4e0b\u5382\u5546\u63d0\u4f9b\u7684\u5b89\u5168\u516c\u544a\u83b7\u53d6\u8865\u4e01\u4ee5\u4fee\u590d\u8be5\u6f0f\u6d1e\uff1a\r\nhttp://www.ubuntu.com/usn/USN-2811-1",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2015-07709",
  "openTime": "2015-11-23",
  "patchDescription": "strongSwan\u662f\u4e00\u5957Linux\u5e73\u53f0\u4f7f\u7528\u7684\u5f00\u6e90\u7684\u57fa\u4e8eIPsec\u7684VPN\u89e3\u51b3\u65b9\u6848\u3002 \r\n\r\nstrongSwan\u7684eap-mschapv2\u63d2\u4ef6\u4e2d\u7684EAP-MSCHAPv2\u534f\u8bae\u7684\u670d\u52a1\u5668\u5b9e\u73b0\u8fc7\u7a0b\u4e2d\u672a\u80fd\u6b63\u786e\u9a8c\u8bc1\u672c\u5730\u72b6\u6001\uff0c\u5141\u8bb8\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u53d1\u9001\u7a7a\u7684Success\u6d88\u606f\u505a\u4e3a\u521d\u59cbChallenge\u6d88\u606f\u7684\u54cd\u5e94\u7ed5\u8fc7\u8eab\u4efd\u9a8c\u8bc1\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": "strongSwan\u5b89\u5168\u673a\u5236\u7ed5\u8fc7\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Strongswan Strongswan 4.2.12-5.x(\u003c5.3.4)"
  },
  "referenceLink": "http://www.ubuntu.com/usn/USN-2811-1",
  "serverity": "\u4e2d",
  "submitTime": "2015-11-19",
  "title": "strongSwan\u5b89\u5168\u673a\u5236\u7ed5\u8fc7\u6f0f\u6d1e"
}

CVE-2015-8023 (GCVE-0-2015-8023)

Vulnerability from cvelistv5

Published

2015-11-18 16:00

Modified

2024-08-06 08:06

Severity ?

CWE

Summary

The server implementation of the EAP-MSCHAPv2 protocol in the eap-mschapv2 plugin in strongSwan 4.2.12 through 5.x before 5.3.4 does not properly validate local state, which allows remote attackers to bypass authentication via an empty Success message in response to an initial Challenge message.

References

▼	URL	Tags
	http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00025.html	vendor-advisory, x_refsource_SUSE
	https://www.strongswan.org/blog/2015/11/16/strongswan-vulnerability-%28cve-2015-8023%29.html	x_refsource_CONFIRM
	http://lists.opensuse.org/opensuse-updates/2015-11/msg00139.html	vendor-advisory, x_refsource_SUSE
	http://www.securityfocus.com/bid/84947	vdb-entry, x_refsource_BID
	http://www.debian.org/security/2015/dsa-3398	vendor-advisory, x_refsource_DEBIAN
	http://www.ubuntu.com/usn/USN-2811-1	vendor-advisory, x_refsource_UBUNTU

Impacted products

	Vendor	Product	Version
	n/a	n/a	Version: n/a

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-06T08:06:31.575Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "SUSE-SU-2015:2183",
            "tags": [
              "vendor-advisory",
              "x_refsource_SUSE",
              "x_transferred"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00025.html"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://www.strongswan.org/blog/2015/11/16/strongswan-vulnerability-%28cve-2015-8023%29.html"
          },
          {
            "name": "openSUSE-SU-2015:2103",
            "tags": [
              "vendor-advisory",
              "x_refsource_SUSE",
              "x_transferred"
            ],
            "url": "http://lists.opensuse.org/opensuse-updates/2015-11/msg00139.html"
          },
          {
            "name": "84947",
            "tags": [
              "vdb-entry",
              "x_refsource_BID",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/84947"
          },
          {
            "name": "DSA-3398",
            "tags": [
              "vendor-advisory",
              "x_refsource_DEBIAN",
              "x_transferred"
            ],
            "url": "http://www.debian.org/security/2015/dsa-3398"
          },
          {
            "name": "USN-2811-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "http://www.ubuntu.com/usn/USN-2811-1"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2015-11-16T00:00:00",
      "descriptions": [
        {
          "lang": "en",
          "value": "The server implementation of the EAP-MSCHAPv2 protocol in the eap-mschapv2 plugin in strongSwan 4.2.12 through 5.x before 5.3.4 does not properly validate local state, which allows remote attackers to bypass authentication via an empty Success message in response to an initial Challenge message."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2016-12-05T20:57:01",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "name": "SUSE-SU-2015:2183",
          "tags": [
            "vendor-advisory",
            "x_refsource_SUSE"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00025.html"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://www.strongswan.org/blog/2015/11/16/strongswan-vulnerability-%28cve-2015-8023%29.html"
        },
        {
          "name": "openSUSE-SU-2015:2103",
          "tags": [
            "vendor-advisory",
            "x_refsource_SUSE"
          ],
          "url": "http://lists.opensuse.org/opensuse-updates/2015-11/msg00139.html"
        },
        {
          "name": "84947",
          "tags": [
            "vdb-entry",
            "x_refsource_BID"
          ],
          "url": "http://www.securityfocus.com/bid/84947"
        },
        {
          "name": "DSA-3398",
          "tags": [
            "vendor-advisory",
            "x_refsource_DEBIAN"
          ],
          "url": "http://www.debian.org/security/2015/dsa-3398"
        },
        {
          "name": "USN-2811-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "http://www.ubuntu.com/usn/USN-2811-1"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2015-8023",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "The server implementation of the EAP-MSCHAPv2 protocol in the eap-mschapv2 plugin in strongSwan 4.2.12 through 5.x before 5.3.4 does not properly validate local state, which allows remote attackers to bypass authentication via an empty Success message in response to an initial Challenge message."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "SUSE-SU-2015:2183",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00025.html"
            },
            {
              "name": "https://www.strongswan.org/blog/2015/11/16/strongswan-vulnerability-(cve-2015-8023).html",
              "refsource": "CONFIRM",
              "url": "https://www.strongswan.org/blog/2015/11/16/strongswan-vulnerability-(cve-2015-8023).html"
            },
            {
              "name": "openSUSE-SU-2015:2103",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-updates/2015-11/msg00139.html"
            },
            {
              "name": "84947",
              "refsource": "BID",
              "url": "http://www.securityfocus.com/bid/84947"
            },
            {
              "name": "DSA-3398",
              "refsource": "DEBIAN",
              "url": "http://www.debian.org/security/2015/dsa-3398"
            },
            {
              "name": "USN-2811-1",
              "refsource": "UBUNTU",
              "url": "http://www.ubuntu.com/usn/USN-2811-1"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2015-8023",
    "datePublished": "2015-11-18T16:00:00",
    "dateReserved": "2015-10-29T00:00:00",
    "dateUpdated": "2024-08-06T08:06:31.575Z",
    "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.

Action not permitted