CVE-2017-13649

CVSS V2 Low 2.1 CVSS V3 Medium 5.5
Description
UnrealIRCd 4.0.13 and earlier creates a PID file after dropping privileges to a non-root account, which might allow local users to kill arbitrary processes by leveraging access to this non-root account for PID file modification before a root script executes a "kill `cat /pathname`" command. NOTE: the vendor indicates that there is no common or recommended scenario in which a root script would execute this kill command.
Overview
  • CVE ID
  • CVE-2017-13649
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2017-08-23T21:29:00
  • Last Modified Date
  • 2019-10-03T00:03:26
Weakness Enumerations
CWE URL
CWE-665 http://cwe.mitre.org/data/definitions/665.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:unrealircd:unrealircd:*:*:*:*:*:*:*:* 1 OR 4.0.13
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:L/AC:L/Au:N/C:N/I:N/A:P
  • Access Vector
  • LOCAL
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 2.1
  • Severity
  • LOW
  • Exploitability Score
  • 3.9
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.0
  • Vector String
  • CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  • Attack Vector
  • LOCAL
  • Attack Compatibility
  • LOW
  • Privileges Required
  • LOW
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 5.5
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 1.8
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://bugs.unrealircd.org/view.php?id=4990 Issue Tracking Third Party Advisory
http://www.securityfocus.com/bid/100507 Third Party Advisory VDB Entry
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2017-13649
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-13649
History
Created Old Value New Value Data Type Notes
2022-05-10 17:22:12 Added to TrackCVE
2022-12-02 20:14:27 2017-08-23T21:29Z 2017-08-23T21:29:00 CVE Published Date updated
2022-12-02 20:14:27 2019-10-03T00:03:26 CVE Modified Date updated
2022-12-02 20:14:27 Analyzed Vulnerability Status updated