MSRC_CVE-2023-25690

Vulnerability from csaf_microsoft - Published: 2023-03-10 00:00 - Updated: 2025-05-15 00:00
Summary
Apache HTTP Server: HTTP request splitting with mod_rewrite and mod_proxy

Notes

Additional Resources
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle
Disclaimer
The information provided in the Microsoft Knowledge Base is provided \"as is\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.
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{
  "document": {
    "category": "csaf_vex",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Public",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en-US",
    "notes": [
      {
        "category": "general",
        "text": "To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle",
        "title": "Additional Resources"
      },
      {
        "category": "legal_disclaimer",
        "text": "The information provided in the Microsoft Knowledge Base is provided \\\"as is\\\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.",
        "title": "Disclaimer"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "secure@microsoft.com",
      "name": "Microsoft Security Response Center",
      "namespace": "https://msrc.microsoft.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "CVE-2023-25690 Apache HTTP Server: HTTP request splitting with mod_rewrite and mod_proxy - VEX",
        "url": "https://msrc.microsoft.com/csaf/vex/2023/msrc_cve-2023-25690.json"
      },
      {
        "category": "external",
        "summary": "Microsoft Support Lifecycle",
        "url": "https://support.microsoft.com/lifecycle"
      },
      {
        "category": "external",
        "summary": "Common Vulnerability Scoring System",
        "url": "https://www.first.org/cvss"
      }
    ],
    "title": "Apache HTTP Server: HTTP request splitting with mod_rewrite and mod_proxy",
    "tracking": {
      "current_release_date": "2025-05-15T00:00:00.000Z",
      "generator": {
        "date": "2025-10-20T00:21:27.846Z",
        "engine": {
          "name": "MSRC Generator",
          "version": "1.0"
        }
      },
      "id": "msrc_CVE-2023-25690",
      "initial_release_date": "2023-03-10T00:00:00.000Z",
      "revision_history": [
        {
          "date": "2023-03-14T00:00:00.000Z",
          "legacy_version": "1",
          "number": "1",
          "summary": "Information published."
        },
        {
          "date": "2025-05-15T00:00:00.000Z",
          "legacy_version": "1.1",
          "number": "2",
          "summary": "Added mod_http2 to Azure Linux 3.0\nAdded httpd to CBL-Mariner 1.0\nAdded httpd to CBL-Mariner 2.0"
        }
      ],
      "status": "final",
      "version": "2"
    }
  },
  "product_tree": {
    "branches": [
      {
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          {
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                  "product_id": "16820"
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              },
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              },
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                "product": {
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            ],
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            "name": "Azure Linux"
          },
          {
            "branches": [
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                "name": "\u003ccm1 httpd 2.4.56-1",
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                "product": {
                  "name": "\u003ccbl2 httpd 2.4.56-1",
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                }
              },
              {
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                "name": "cbl2 httpd 2.4.56-1",
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            ],
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          },
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                "category": "product_version_range",
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                  "product_id": "3"
                }
              },
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                }
              }
            ],
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          }
        ],
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      }
    ],
    "relationships": [
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        "category": "default_component_of",
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      {
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        "relates_to_product_reference": "17086"
      },
      {
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        "relates_to_product_reference": "17084"
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        },
        "product_reference": "17683",
        "relates_to_product_reference": "17084"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2023-25690",
      "cwe": {
        "id": "CWE-444",
        "name": "Inconsistent Interpretation of HTTP Requests (\u0027HTTP Request/Response Smuggling\u0027)"
      },
      "notes": [
        {
          "category": "general",
          "text": "apache",
          "title": "Assigning CNA"
        }
      ],
      "product_status": {
        "fixed": [
          "17931-16820",
          "17932-17086",
          "17683-17084"
        ],
        "known_affected": [
          "16820-2",
          "17086-1",
          "17084-3"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2023-25690 Apache HTTP Server: HTTP request splitting with mod_rewrite and mod_proxy - VEX",
          "url": "https://msrc.microsoft.com/csaf/vex/2023/msrc_cve-2023-25690.json"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2023-03-14T00:00:00.000Z",
          "details": "2.4.56-1:Security Update:https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade",
          "product_ids": [
            "16820-2",
            "17086-1"
          ],
          "url": "https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade"
        },
        {
          "category": "vendor_fix",
          "date": "2023-03-14T00:00:00.000Z",
          "details": "2.0.29-3:Security Update:https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade",
          "product_ids": [
            "17084-3"
          ],
          "url": "https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "environmentalsScore": 0.0,
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "temporalScore": 9.8,
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "16820-2",
            "17086-1",
            "17084-3"
          ]
        }
      ],
      "title": "Apache HTTP Server: HTTP request splitting with mod_rewrite and mod_proxy"
    }
  ]
}


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Sightings

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  • 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.