ubuntu-cve-2020-11985
Vulnerability from osv_ubuntu
Published
2020-08-07 16:15
Modified
2026-06-08 11:55
Summary
Details

IP address spoofing when proxying using mod_remoteip and mod_rewrite For configurations using proxying with mod_remoteip and certain mod_rewrite rules, an attacker could spoof their IP address for logging and PHP scripts. Note this issue was fixed in Apache HTTP Server 2.4.24 but was retrospectively allocated a low severity CVE in 2020.

Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
N/A (UNKNOWN)
low
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "apache2",
            "binary_version": "2.4.7-1ubuntu4.22+esm13"
          },
          {
            "binary_name": "apache2-bin",
            "binary_version": "2.4.7-1ubuntu4.22+esm13"
          },
          {
            "binary_name": "apache2-data",
            "binary_version": "2.4.7-1ubuntu4.22+esm13"
          },
          {
            "binary_name": "apache2-mpm-event",
            "binary_version": "2.4.7-1ubuntu4.22+esm13"
          },
          {
            "binary_name": "apache2-mpm-itk",
            "binary_version": "2.4.7-1ubuntu4.22+esm13"
          },
          {
            "binary_name": "apache2-mpm-prefork",
            "binary_version": "2.4.7-1ubuntu4.22+esm13"
          },
          {
            "binary_name": "apache2-mpm-worker",
            "binary_version": "2.4.7-1ubuntu4.22+esm13"
          },
          {
            "binary_name": "apache2-suexec",
            "binary_version": "2.4.7-1ubuntu4.22+esm13"
          },
          {
            "binary_name": "apache2-suexec-custom",
            "binary_version": "2.4.7-1ubuntu4.22+esm13"
          },
          {
            "binary_name": "apache2-suexec-pristine",
            "binary_version": "2.4.7-1ubuntu4.22+esm13"
          },
          {
            "binary_name": "apache2-utils",
            "binary_version": "2.4.7-1ubuntu4.22+esm13"
          },
          {
            "binary_name": "apache2.2-bin",
            "binary_version": "2.4.7-1ubuntu4.22+esm13"
          },
          {
            "binary_name": "libapache2-mod-macro",
            "binary_version": "1:2.4.7-1ubuntu4.22+esm13"
          },
          {
            "binary_name": "libapache2-mod-proxy-html",
            "binary_version": "1:2.4.7-1ubuntu4.22+esm13"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "apache2",
        "purl": "pkg:deb/ubuntu/apache2@2.4.7-1ubuntu4.22+esm13?arch=source\u0026distro=esm-infra-legacy/trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.4.6-2ubuntu2",
        "2.4.6-2ubuntu3",
        "2.4.6-2ubuntu4",
        "2.4.7-1ubuntu1",
        "2.4.7-1ubuntu2",
        "2.4.7-1ubuntu3",
        "2.4.7-1ubuntu4",
        "2.4.7-1ubuntu4.1",
        "2.4.7-1ubuntu4.4",
        "2.4.7-1ubuntu4.5",
        "2.4.7-1ubuntu4.6",
        "2.4.7-1ubuntu4.7",
        "2.4.7-1ubuntu4.8",
        "2.4.7-1ubuntu4.9",
        "2.4.7-1ubuntu4.10",
        "2.4.7-1ubuntu4.11",
        "2.4.7-1ubuntu4.13",
        "2.4.7-1ubuntu4.15",
        "2.4.7-1ubuntu4.16",
        "2.4.7-1ubuntu4.17",
        "2.4.7-1ubuntu4.18",
        "2.4.7-1ubuntu4.19",
        "2.4.7-1ubuntu4.20",
        "2.4.7-1ubuntu4.21",
        "2.4.7-1ubuntu4.22",
        "2.4.7-1ubuntu4.22+esm1",
        "2.4.7-1ubuntu4.22+esm2",
        "2.4.7-1ubuntu4.22+esm3",
        "2.4.7-1ubuntu4.22+esm4",
        "2.4.7-1ubuntu4.22+esm5",
        "2.4.7-1ubuntu4.22+esm6",
        "2.4.7-1ubuntu4.22+esm8",
        "2.4.7-1ubuntu4.22+esm9",
        "2.4.7-1ubuntu4.22+esm10",
        "2.4.7-1ubuntu4.22+esm12",
        "2.4.7-1ubuntu4.22+esm13"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "apache2",
            "binary_version": "2.4.18-2ubuntu3.15"
          },
          {
            "binary_name": "apache2-bin",
            "binary_version": "2.4.18-2ubuntu3.15"
          },
          {
            "binary_name": "apache2-data",
            "binary_version": "2.4.18-2ubuntu3.15"
          },
          {
            "binary_name": "apache2-suexec-custom",
            "binary_version": "2.4.18-2ubuntu3.15"
          },
          {
            "binary_name": "apache2-suexec-pristine",
            "binary_version": "2.4.18-2ubuntu3.15"
          },
          {
            "binary_name": "apache2-utils",
            "binary_version": "2.4.18-2ubuntu3.15"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "apache2",
        "purl": "pkg:deb/ubuntu/apache2@2.4.18-2ubuntu3.15?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.4.18-2ubuntu3.15"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.4.12-2ubuntu2",
        "2.4.17-1ubuntu1",
        "2.4.17-2ubuntu1",
        "2.4.17-3ubuntu1",
        "2.4.18-1ubuntu1",
        "2.4.18-2ubuntu1",
        "2.4.18-2ubuntu2",
        "2.4.18-2ubuntu3",
        "2.4.18-2ubuntu3.1",
        "2.4.18-2ubuntu3.2",
        "2.4.18-2ubuntu3.3",
        "2.4.18-2ubuntu3.4",
        "2.4.18-2ubuntu3.5",
        "2.4.18-2ubuntu3.7",
        "2.4.18-2ubuntu3.8",
        "2.4.18-2ubuntu3.9",
        "2.4.18-2ubuntu3.10",
        "2.4.18-2ubuntu3.12",
        "2.4.18-2ubuntu3.13",
        "2.4.18-2ubuntu3.14"
      ]
    }
  ],
  "aliases": [],
  "details": "IP address spoofing when proxying using mod_remoteip and mod_rewrite For configurations using proxying with mod_remoteip and certain mod_rewrite rules, an attacker could spoof their IP address for logging and PHP scripts. Note this issue was fixed in Apache HTTP Server 2.4.24 but was retrospectively allocated a low severity CVE in 2020.",
  "id": "UBUNTU-CVE-2020-11985",
  "modified": "2026-06-08T11:55:37Z",
  "published": "2020-08-07T16:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-11985"
    },
    {
      "type": "REPORT",
      "url": "https://httpd.apache.org/security/vulnerabilities_24.html#CVE-2020-11985"
    },
    {
      "type": "REPORT",
      "url": "https://www.openwall.com/lists/oss-security/2020/08/07/2"
    },
    {
      "type": "REPORT",
      "url": "https://httpd.apache.org/security/vulnerabilities_24.html"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2020-11985"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "low",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2020-11985"
  ]
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.