Vulnerability-Lookup

GHSA-VF9C-2J2H-8FRQ

Vulnerability from github – Published: 2022-05-13 01:08 – Updated: 2022-05-13 01:08

Details

Symantec Advanced Secure Gateway (ASG) 6.6 and 6.7, and ProxySG 6.5, 6.6, and 6.7 are susceptible to a SAML authentication bypass vulnerability. The products can be configured with a SAML authentication realm to authenticate network users in intercepted proxy traffic. When parsing SAML responses, ASG and ProxySG incorrectly handle XML nodes with comments. A remote attacker can modify a valid SAML response without invalidating its cryptographic signature. This may allow the attacker to bypass user authentication security controls in ASG and ProxySG. This vulnerability only affects authentication of network users in intercepted traffic. It does not affect administrator user authentication for the ASG and ProxySG management consoles.

Severity

9.8 (Critical)


                  
                    CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2018-5241"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-05-29T13:29:00Z",
    "severity": "CRITICAL"
  },
  "details": "Symantec Advanced Secure Gateway (ASG) 6.6 and 6.7, and ProxySG 6.5, 6.6, and 6.7 are susceptible to a SAML authentication bypass vulnerability. The products can be configured with a SAML authentication realm to authenticate network users in intercepted proxy traffic. When parsing SAML responses, ASG and ProxySG incorrectly handle XML nodes with comments. A remote attacker can modify a valid SAML response without invalidating its cryptographic signature. This may allow the attacker to bypass user authentication security controls in ASG and ProxySG. This vulnerability only affects authentication of network users in intercepted traffic. It does not affect administrator user authentication for the ASG and ProxySG management consoles.",
  "id": "GHSA-vf9c-2j2h-8frq",
  "modified": "2022-05-13T01:08:52Z",
  "published": "2022-05-13T01:08:52Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-5241"
    },
    {
      "type": "WEB",
      "url": "https://www.symantec.com/security-center/network-protection-security-advisories/SA167"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/104282"
    },
    {
      "type": "WEB",
      "url": "http://www.securitytracker.com/id/1040993"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2018-5241 (GCVE-0-2018-5241)

Vulnerability from cvelistv5 – Published: 2018-05-29 13:00 – Updated: 2024-09-17 03:28

Summary

Severity

No CVSS data available.

CWE

Authentication bypass

Assigner

symantec mitre root Scorecard

References

3 references

URL	Tags
https://www.symantec.com/security-center/network-…	x_refsource_CONFIRM
http://www.securitytracker.com/id/1040993	vdb-entryx_refsource_SECTRACK
http://www.securityfocus.com/bid/104282	vdb-entryx_refsource_BID

Impacted products

2 products

Vendor	Product	Version
Symantec Corporation	Advanced Secure Gateway (ASG)	Affected: 6.6 Affected: 6.7
Symantec Corporation	ProxySG	Affected: 6.5 Affected: 6.6 Affected: 6.7

Date Public

2018-05-25 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T05:33:42.763Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://www.symantec.com/security-center/network-protection-security-advisories/SA167"
          },
          {
            "name": "1040993",
            "tags": [
              "vdb-entry",
              "x_refsource_SECTRACK",
              "x_transferred"
            ],
            "url": "http://www.securitytracker.com/id/1040993"
          },
          {
            "name": "104282",
            "tags": [
              "vdb-entry",
              "x_refsource_BID",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/104282"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Advanced Secure Gateway (ASG)",
          "vendor": "Symantec Corporation",
          "versions": [
            {
              "status": "affected",
              "version": "6.6"
            },
            {
              "status": "affected",
              "version": "6.7"
            }
          ]
        },
        {
          "product": "ProxySG",
          "vendor": "Symantec Corporation",
          "versions": [
            {
              "status": "affected",
              "version": "6.5"
            },
            {
              "status": "affected",
              "version": "6.6"
            },
            {
              "status": "affected",
              "version": "6.7"
            }
          ]
        }
      ],
      "datePublic": "2018-05-25T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "Symantec Advanced Secure Gateway (ASG) 6.6 and 6.7, and ProxySG 6.5, 6.6, and 6.7 are susceptible to a SAML authentication bypass vulnerability. The products can be configured with a SAML authentication realm to authenticate network users in intercepted proxy traffic. When parsing SAML responses, ASG and ProxySG incorrectly handle XML nodes with comments. A remote attacker can modify a valid SAML response without invalidating its cryptographic signature. This may allow the attacker to bypass user authentication security controls in ASG and ProxySG. This vulnerability only affects authentication of network users in intercepted traffic. It does not affect administrator user authentication for the ASG and ProxySG management consoles."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "Authentication bypass",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2018-05-30T09:57:01.000Z",
        "orgId": "80d3bcb6-88de-48c2-a47e-aebf795f19b5",
        "shortName": "symantec"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://www.symantec.com/security-center/network-protection-security-advisories/SA167"
        },
        {
          "name": "1040993",
          "tags": [
            "vdb-entry",
            "x_refsource_SECTRACK"
          ],
          "url": "http://www.securitytracker.com/id/1040993"
        },
        {
          "name": "104282",
          "tags": [
            "vdb-entry",
            "x_refsource_BID"
          ],
          "url": "http://www.securityfocus.com/bid/104282"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "secure@symantec.com",
          "DATE_PUBLIC": "2018-05-25T00:00:00",
          "ID": "CVE-2018-5241",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Advanced Secure Gateway (ASG)",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "6.6"
                          },
                          {
                            "version_value": "6.7"
                          }
                        ]
                      }
                    },
                    {
                      "product_name": "ProxySG",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "6.5"
                          },
                          {
                            "version_value": "6.6"
                          },
                          {
                            "version_value": "6.7"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Symantec Corporation"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "Symantec Advanced Secure Gateway (ASG) 6.6 and 6.7, and ProxySG 6.5, 6.6, and 6.7 are susceptible to a SAML authentication bypass vulnerability. The products can be configured with a SAML authentication realm to authenticate network users in intercepted proxy traffic. When parsing SAML responses, ASG and ProxySG incorrectly handle XML nodes with comments. A remote attacker can modify a valid SAML response without invalidating its cryptographic signature. This may allow the attacker to bypass user authentication security controls in ASG and ProxySG. This vulnerability only affects authentication of network users in intercepted traffic. It does not affect administrator user authentication for the ASG and ProxySG management consoles."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "Authentication bypass"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://www.symantec.com/security-center/network-protection-security-advisories/SA167",
              "refsource": "CONFIRM",
              "url": "https://www.symantec.com/security-center/network-protection-security-advisories/SA167"
            },
            {
              "name": "1040993",
              "refsource": "SECTRACK",
              "url": "http://www.securitytracker.com/id/1040993"
            },
            {
              "name": "104282",
              "refsource": "BID",
              "url": "http://www.securityfocus.com/bid/104282"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "80d3bcb6-88de-48c2-a47e-aebf795f19b5",
    "assignerShortName": "symantec",
    "cveId": "CVE-2018-5241",
    "datePublished": "2018-05-29T13:00:00.000Z",
    "dateReserved": "2018-01-05T00:00:00.000Z",
    "dateUpdated": "2024-09-17T03:28:24.667Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

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.

Action not permitted

GHSA-VF9C-2J2H-8FRQ

CVE-2018-5241 (GCVE-0-2018-5241)

Tags

Sightings

Nomenclature

Related by attack behaviour