github - ghsa-m97c-3wp7-wp45

GHSA-M97C-3WP7-WP45

Vulnerability from github – Published: 2025-11-17 18:30 – Updated: 2025-11-26 15:34

Details

Nagios Log Server versions prior to 2026R1.0.1 are vulnerable to local privilege escalation due to unsafe interaction between sudo rules and file system permissions. The web server account is granted passwordless sudo access to certain maintenance scripts while also being a member of a group that has write access to the directory containing those scripts. A local attacker running as the web server user can replace one of the permitted scripts with a malicious program and then execute it via sudo, resulting in arbitrary code execution with root privileges.

Severity ?

7.8 (High)


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

8.5 (High)


                  
                    CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Show details on source website

JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2025-34323"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-732"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-11-17T18:15:56Z",
    "severity": "HIGH"
  },
  "details": "Nagios Log Server versions prior to 2026R1.0.1 are vulnerable to local privilege escalation due to unsafe interaction between sudo rules and file system permissions. The web server account is granted passwordless sudo access to certain maintenance scripts while also being a member of a group that has write access to the directory containing those scripts. A local attacker running as the web server user can replace one of the permitted scripts with a malicious program and then execute it via sudo, resulting in arbitrary code execution with root privileges.",
  "id": "GHSA-m97c-3wp7-wp45",
  "modified": "2025-11-26T15:34:10Z",
  "published": "2025-11-17T18:30:32Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-34323"
    },
    {
      "type": "WEB",
      "url": "https://theyhack.me/Rooting-Nagios-Log-Server"
    },
    {
      "type": "WEB",
      "url": "https://www.nagios.com/changelog/nagios-log-server/nagios-log-server-2026r1-0-1"
    },
    {
      "type": "WEB",
      "url": "https://www.nagios.com/products/security/#log-server"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/nagios-log-server-local-privilege-escalation-via-writable-scripts-and-sudo-rules"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2025-34323 (GCVE-0-2025-34323)

Vulnerability from cvelistv5 – Published: 2025-11-17 17:48 – Updated: 2025-11-26 14:15

Summary

Nagios Log Server versions prior to 2026R1.0.1 are vulnerable to local privilege escalation due to a combination of sudo misconfiguration and group-writable application directories. The 'www-data' user is a member of the 'nagios' group, which has write access to '/usr/local/nagioslogserver/scripts', while several scripts in this directory are owned by root and may be executed via sudo without a password. A local attacker running as 'www-data' can move one of these root-owned scripts to a backup name and create a replacement script with attacker-controlled content at the original path, then invoke it with sudo. This allows arbitrary commands to be executed with root privileges, providing full compromise of the underlying operating system.

Severity ?

8.5 (High)


                        
                          CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CWE

CWE-732 - Incorrect Permission Assignment for Critical Resource

Assigner

VulnCheck

References

URL

Tags

	https://www.nagios.com/products/security/#log-server	vendor-advisorypatch
	https://www.nagios.com/changelog/nagios-log-serve…	release-notespatch
	https://www.vulncheck.com/advisories/nagios-log-s…	third-party-advisory
	https://theyhack.me/Rooting-Nagios-Log-Server/	technical-descriptionexploit

Impacted products

	Vendor	Product	Version
	Nagios	Log Server	Affected: 0 , < 2026R1.0.1 (semver)

Credits

M. Cory Billington of theyhack.me

Show details on NVD website

JSON

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                "id": "CVE-2025-34323",
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                  },
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                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-11-17T00:00:00+00:00",
                "version": "2.0.3"
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          "lang": "en",
          "time": "2025-11-05T17:00:00.000Z",
          "value": "2026R1.0.1 is released"
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Sightings

Author	Source	Type	Date

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.

Action not permitted

GHSA-M97C-3WP7-WP45

CVE-2025-34323 (GCVE-0-2025-34323)

Tags

Sightings

Nomenclature