Vulnerability-Lookup

ubuntu-cve-2025-1131

Vulnerability from osv_ubuntu

Published

2025-09-23 05:15

Modified

2026-04-22 07:53

Summary

Details

A local privilege escalation vulnerability exists in the safe_asterisk script included with the Asterisk toolkit package. When Asterisk is started via this script (common in SysV init or FreePBX environments), it sources all .sh files located in /etc/asterisk/startup.d/ as root, without validating ownership or permissions. Non-root users with legitimate write access to /etc/asterisk can exploit this behaviour by placing malicious scripts in the startup.d directory, which will then execute with root privileges upon service restart.

Severity

7.0 (High)


                    
                      CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:N/V:C/RE:H/U:Amber

7.8 (High)


                    
                      CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2025-1131	REPORT
	https://www.cve.org/CVERecord?id=CVE-2025-1131	REPORT
	https://github.com/asterisk/asterisk/security/adv…	REPORT
	https://github.com/asterisk/asterisk/commit/f9736…	REPORT
	https://github.com/asterisk/asterisk/commit/7ba06…	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "asterisk",
            "binary_version": "1:13.1.0~dfsg-1.1ubuntu4.1+esm1"
          },
          {
            "binary_name": "asterisk-config",
            "binary_version": "1:13.1.0~dfsg-1.1ubuntu4.1+esm1"
          },
          {
            "binary_name": "asterisk-dahdi",
            "binary_version": "1:13.1.0~dfsg-1.1ubuntu4.1+esm1"
          },
          {
            "binary_name": "asterisk-mobile",
            "binary_version": "1:13.1.0~dfsg-1.1ubuntu4.1+esm1"
          },
          {
            "binary_name": "asterisk-modules",
            "binary_version": "1:13.1.0~dfsg-1.1ubuntu4.1+esm1"
          },
          {
            "binary_name": "asterisk-mp3",
            "binary_version": "1:13.1.0~dfsg-1.1ubuntu4.1+esm1"
          },
          {
            "binary_name": "asterisk-mysql",
            "binary_version": "1:13.1.0~dfsg-1.1ubuntu4.1+esm1"
          },
          {
            "binary_name": "asterisk-ooh323",
            "binary_version": "1:13.1.0~dfsg-1.1ubuntu4.1+esm1"
          },
          {
            "binary_name": "asterisk-voicemail",
            "binary_version": "1:13.1.0~dfsg-1.1ubuntu4.1+esm1"
          },
          {
            "binary_name": "asterisk-voicemail-imapstorage",
            "binary_version": "1:13.1.0~dfsg-1.1ubuntu4.1+esm1"
          },
          {
            "binary_name": "asterisk-voicemail-odbcstorage",
            "binary_version": "1:13.1.0~dfsg-1.1ubuntu4.1+esm1"
          },
          {
            "binary_name": "asterisk-vpb",
            "binary_version": "1:13.1.0~dfsg-1.1ubuntu4.1+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "asterisk",
        "purl": "pkg:deb/ubuntu/asterisk@1:13.1.0~dfsg-1.1ubuntu4.1+esm1?arch=source\u0026distro=esm-apps/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:13.1.0~dfsg-1.1ubuntu3",
        "1:13.1.0~dfsg-1.1ubuntu4",
        "1:13.1.0~dfsg-1.1ubuntu4.1",
        "1:13.1.0~dfsg-1.1ubuntu4.1+esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "asterisk",
            "binary_version": "1:13.18.3~dfsg-1ubuntu4"
          },
          {
            "binary_name": "asterisk-config",
            "binary_version": "1:13.18.3~dfsg-1ubuntu4"
          },
          {
            "binary_name": "asterisk-dahdi",
            "binary_version": "1:13.18.3~dfsg-1ubuntu4"
          },
          {
            "binary_name": "asterisk-mobile",
            "binary_version": "1:13.18.3~dfsg-1ubuntu4"
          },
          {
            "binary_name": "asterisk-modules",
            "binary_version": "1:13.18.3~dfsg-1ubuntu4"
          },
          {
            "binary_name": "asterisk-mp3",
            "binary_version": "1:13.18.3~dfsg-1ubuntu4"
          },
          {
            "binary_name": "asterisk-mysql",
            "binary_version": "1:13.18.3~dfsg-1ubuntu4"
          },
          {
            "binary_name": "asterisk-ooh323",
            "binary_version": "1:13.18.3~dfsg-1ubuntu4"
          },
          {
            "binary_name": "asterisk-tests",
            "binary_version": "1:13.18.3~dfsg-1ubuntu4"
          },
          {
            "binary_name": "asterisk-voicemail",
            "binary_version": "1:13.18.3~dfsg-1ubuntu4"
          },
          {
            "binary_name": "asterisk-voicemail-imapstorage",
            "binary_version": "1:13.18.3~dfsg-1ubuntu4"
          },
          {
            "binary_name": "asterisk-voicemail-odbcstorage",
            "binary_version": "1:13.18.3~dfsg-1ubuntu4"
          },
          {
            "binary_name": "asterisk-vpb",
            "binary_version": "1:13.18.3~dfsg-1ubuntu4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "asterisk",
        "purl": "pkg:deb/ubuntu/asterisk@1:13.18.3~dfsg-1ubuntu4?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:13.17.2~dfsg-1ubuntu1",
        "1:13.17.2~dfsg-2ubuntu1",
        "1:13.18.1~dfsg-1ubuntu1",
        "1:13.18.3~dfsg-1ubuntu1",
        "1:13.18.3~dfsg-1ubuntu2",
        "1:13.18.3~dfsg-1ubuntu3",
        "1:13.18.3~dfsg-1ubuntu4"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "asterisk",
            "binary_version": "1:16.2.1~dfsg-2ubuntu1"
          },
          {
            "binary_name": "asterisk-config",
            "binary_version": "1:16.2.1~dfsg-2ubuntu1"
          },
          {
            "binary_name": "asterisk-dahdi",
            "binary_version": "1:16.2.1~dfsg-2ubuntu1"
          },
          {
            "binary_name": "asterisk-mobile",
            "binary_version": "1:16.2.1~dfsg-2ubuntu1"
          },
          {
            "binary_name": "asterisk-modules",
            "binary_version": "1:16.2.1~dfsg-2ubuntu1"
          },
          {
            "binary_name": "asterisk-mp3",
            "binary_version": "1:16.2.1~dfsg-2ubuntu1"
          },
          {
            "binary_name": "asterisk-mysql",
            "binary_version": "1:16.2.1~dfsg-2ubuntu1"
          },
          {
            "binary_name": "asterisk-ooh323",
            "binary_version": "1:16.2.1~dfsg-2ubuntu1"
          },
          {
            "binary_name": "asterisk-tests",
            "binary_version": "1:16.2.1~dfsg-2ubuntu1"
          },
          {
            "binary_name": "asterisk-voicemail",
            "binary_version": "1:16.2.1~dfsg-2ubuntu1"
          },
          {
            "binary_name": "asterisk-voicemail-imapstorage",
            "binary_version": "1:16.2.1~dfsg-2ubuntu1"
          },
          {
            "binary_name": "asterisk-voicemail-odbcstorage",
            "binary_version": "1:16.2.1~dfsg-2ubuntu1"
          },
          {
            "binary_name": "asterisk-vpb",
            "binary_version": "1:16.2.1~dfsg-2ubuntu1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "asterisk",
        "purl": "pkg:deb/ubuntu/asterisk@1:16.2.1~dfsg-2ubuntu1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:16.2.1~dfsg-2build2",
        "1:16.2.1~dfsg-2build3",
        "1:16.2.1~dfsg-2ubuntu1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "asterisk",
            "binary_version": "1:18.10.0~dfsg+~cs6.10.40431411-2"
          },
          {
            "binary_name": "asterisk-config",
            "binary_version": "1:18.10.0~dfsg+~cs6.10.40431411-2"
          },
          {
            "binary_name": "asterisk-dahdi",
            "binary_version": "1:18.10.0~dfsg+~cs6.10.40431411-2"
          },
          {
            "binary_name": "asterisk-mobile",
            "binary_version": "1:18.10.0~dfsg+~cs6.10.40431411-2"
          },
          {
            "binary_name": "asterisk-modules",
            "binary_version": "1:18.10.0~dfsg+~cs6.10.40431411-2"
          },
          {
            "binary_name": "asterisk-mp3",
            "binary_version": "1:18.10.0~dfsg+~cs6.10.40431411-2"
          },
          {
            "binary_name": "asterisk-mysql",
            "binary_version": "1:18.10.0~dfsg+~cs6.10.40431411-2"
          },
          {
            "binary_name": "asterisk-ooh323",
            "binary_version": "1:18.10.0~dfsg+~cs6.10.40431411-2"
          },
          {
            "binary_name": "asterisk-tests",
            "binary_version": "1:18.10.0~dfsg+~cs6.10.40431411-2"
          },
          {
            "binary_name": "asterisk-vpb",
            "binary_version": "1:18.10.0~dfsg+~cs6.10.40431411-2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "asterisk",
        "purl": "pkg:deb/ubuntu/asterisk@1:18.10.0~dfsg+~cs6.10.40431411-2?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:16.16.1~dfsg-2",
        "1:16.16.1~dfsg-4",
        "1:16.16.1~dfsg-4build1",
        "1:16.16.1~dfsg+~2.10-1",
        "1:18.10.0~dfsg+~cs6.10.40431411-2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "asterisk",
            "binary_version": "1:20.6.0~dfsg+~cs6.13.40431414-2build5"
          },
          {
            "binary_name": "asterisk-config",
            "binary_version": "1:20.6.0~dfsg+~cs6.13.40431414-2build5"
          },
          {
            "binary_name": "asterisk-dahdi",
            "binary_version": "1:20.6.0~dfsg+~cs6.13.40431414-2build5"
          },
          {
            "binary_name": "asterisk-mobile",
            "binary_version": "1:20.6.0~dfsg+~cs6.13.40431414-2build5"
          },
          {
            "binary_name": "asterisk-modules",
            "binary_version": "1:20.6.0~dfsg+~cs6.13.40431414-2build5"
          },
          {
            "binary_name": "asterisk-mp3",
            "binary_version": "1:20.6.0~dfsg+~cs6.13.40431414-2build5"
          },
          {
            "binary_name": "asterisk-mysql",
            "binary_version": "1:20.6.0~dfsg+~cs6.13.40431414-2build5"
          },
          {
            "binary_name": "asterisk-ooh323",
            "binary_version": "1:20.6.0~dfsg+~cs6.13.40431414-2build5"
          },
          {
            "binary_name": "asterisk-tests",
            "binary_version": "1:20.6.0~dfsg+~cs6.13.40431414-2build5"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "asterisk",
        "purl": "pkg:deb/ubuntu/asterisk@1:20.6.0~dfsg+~cs6.13.40431414-2build5?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:20.4.0~dfsg+~cs6.13.40431414-2",
        "1:20.5.0~dfsg+~cs6.13.40431414-1",
        "1:20.5.1~dfsg+~cs6.13.40431414-1",
        "1:20.5.2~dfsg+~cs6.13.40431414-1",
        "1:20.6.0~dfsg+~cs6.13.40431414-1",
        "1:20.6.0~dfsg+~cs6.13.40431414-2",
        "1:20.6.0~dfsg+~cs6.13.40431414-2build3",
        "1:20.6.0~dfsg+~cs6.13.40431414-2build4",
        "1:20.6.0~dfsg+~cs6.13.40431414-2build5"
      ]
    }
  ],
  "aliases": [],
  "details": "A local privilege escalation vulnerability exists in the safe_asterisk script included with the Asterisk toolkit package. When Asterisk is started via this script (common in SysV init or FreePBX environments), it sources all .sh files located in /etc/asterisk/startup.d/ as root, without validating ownership or permissions. Non-root users with legitimate write access to /etc/asterisk can exploit this behaviour by placing malicious scripts in the startup.d directory, which will then execute with root privileges upon service restart.",
  "id": "UBUNTU-CVE-2025-1131",
  "modified": "2026-04-22T07:53:16Z",
  "published": "2025-09-23T05:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-1131"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-1131"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/asterisk/asterisk/security/advisories/GHSA-v9q8-9j8m-5xwp"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/asterisk/asterisk/commit/f97361952023625e8dd49ca03454777fad19fedb"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/asterisk/asterisk/commit/7ba06dc6ee5efd4edfe79690ad8d61a33b92ce3d"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:N/V:C/RE:H/U:Amber",
      "type": "CVSS_V4"
    },
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2025-1131"
  ]
}

CVE-2025-1131 (GCVE-0-2025-1131)

Vulnerability from cvelistv5 – Published: 2025-09-23 04:31 – Updated: 2026-02-26 17:48

Title

Asterisk Unsafe Shell Sourcing in safe_asterisk Leads to Local Privilege Escalation

Summary

Severity

7 (High)


                        
                          CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:N/V:C/RE:H/U:Amber

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-427 - Uncontrolled Search Path Element

Assigner

Gridware

References

2 references

URL	Tags
https://github.com/asterisk/asterisk/security/adv…
https://lists.debian.org/debian-lts-announce/2025…

Impacted products

1 product

Vendor	Product	Version
Asterisk	Asterisk	Affected: Asterisk <=18.26.2 (custom) Affected: Asterisk <= 20.15.0 (custom) Affected: Asterisk <= 21.10.0 (custom) Affected: Asterisk <= 22.5.0 (custom)

Date Public

2025-08-01 05:23

Credits

Abdul Mhanni

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-1131",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-09-24T03:55:15.207908Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-02-26T17:48:19.381Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-03T17:31:42.189Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00006.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "modules": [
            "safe_asterisk /etc/asterisk/startup.d"
          ],
          "platforms": [
            "Linux",
            "MacOS"
          ],
          "product": "Asterisk",
          "programFiles": [
            "safe_asterisk"
          ],
          "repo": "https://github.com/asterisk/asterisk",
          "vendor": "Asterisk",
          "versions": [
            {
              "status": "affected",
              "version": "Asterisk \u003c=18.26.2",
              "versionType": "custom"
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            {
              "status": "affected",
              "version": "Asterisk \u003c= 20.15.0",
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            },
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            }
          ]
        }
      ],
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              "value": "\u003cp\u003eA local privilege escalation vulnerability exists in the \u003ccode\u003esafe_asterisk\u003c/code\u003e script included with the Asterisk toolkit package. When Asterisk is started via this script (common in SysV init or FreePBX environments), it sources all \u003ccode\u003e.sh\u003c/code\u003e files located in \u003ccode\u003e/etc/asterisk/startup.d/\u003c/code\u003e \u003cstrong\u003eas root\u003c/strong\u003e, without validating ownership or permissions.\u003c/p\u003e\n\u003cp\u003eNon-root users with legitimate write access to \u003ccode\u003e/etc/asterisk\u003c/code\u003e can exploit this behaviour by placing malicious scripts in the \u003ccode\u003estartup.d\u003c/code\u003e directory, which will then execute with root privileges upon service restart.\u003c/p\u003e"
            }
          ],
          "value": "A local privilege escalation vulnerability exists in the safe_asterisk script included with the Asterisk toolkit package. When Asterisk is started via this script (common in SysV init or FreePBX environments), it sources all .sh files located in /etc/asterisk/startup.d/ as root, without validating ownership or permissions.\n\n\nNon-root users with legitimate write access to /etc/asterisk can exploit this behaviour by placing malicious scripts in the startup.d directory, which will then execute with root privileges upon service restart."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-233",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-233 Privilege Escalation"
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      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "LOCAL",
            "baseScore": 7,
            "baseSeverity": "HIGH",
            "privilegesRequired": "LOW",
            "providerUrgency": "AMBER",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "HIGH",
            "subIntegrityImpact": "HIGH",
            "userInteraction": "PASSIVE",
            "valueDensity": "CONCENTRATED",
            "vectorString": "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:N/V:C/RE:H/U:Amber",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH",
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          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
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      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-427",
              "description": "CWE-427 Uncontrolled Search Path Element",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-09-23T04:31:02.784Z",
        "orgId": "b7efe717-a805-47cf-8e9a-921fca0ce0ce",
        "shortName": "Gridware"
      },
      "references": [
        {
          "url": "https://github.com/asterisk/asterisk/security/advisories/GHSA-v9q8-9j8m-5xwp"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "Asterisk Unsafe Shell Sourcing in safe_asterisk Leads to Local Privilege Escalation",
      "x_generator": {
        "engine": "Vulnogram 0.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "b7efe717-a805-47cf-8e9a-921fca0ce0ce",
    "assignerShortName": "Gridware",
    "cveId": "CVE-2025-1131",
    "datePublished": "2025-09-23T04:31:02.784Z",
    "dateReserved": "2025-02-08T04:11:43.201Z",
    "dateUpdated": "2026-02-26T17:48:19.381Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

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.

Action not permitted

ubuntu-cve-2025-1131

Vulnerability from osv_ubuntu

CVE-2025-1131 (GCVE-0-2025-1131)

Tags

Sightings

Nomenclature