CVE-2019-12522

CVSS V2 Medium 4.4 CVSS V3 Medium 4.5
Description
An issue was discovered in Squid through 4.7. When Squid is run as root, it spawns its child processes as a lesser user, by default the user nobody. This is done via the leave_suid call. leave_suid leaves the Saved UID as 0. This makes it trivial for an attacker who has compromised the child process to escalate their privileges back to root.
Overview
  • CVE ID
  • CVE-2019-12522
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2020-04-15T19:15:12
  • Last Modified Date
  • 2021-03-10T17:27:49
Weakness Enumerations
CWE URL
CWE-269 http://cwe.mitre.org/data/definitions/269.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:* 1 OR 4.7
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:L/AC:M/Au:N/C:P/I:P/A:P
  • Access Vector
  • LOCAL
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • PARTIAL
  • Availability Impact
  • PARTIAL
  • Base Score
  • 4.4
  • Severity
  • MEDIUM
  • Exploitability Score
  • 3.4
  • Impact Score
  • 6.4
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
  • Attack Vector
  • LOCAL
  • Attack Compatibility
  • HIGH
  • Privileges Required
  • LOW
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • LOW
  • Availability Impact
  • LOW
  • Base Score
  • 4.5
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 1
  • Impact Score
  • 3.4
References
Reference URL Reference Tags
https://gitlab.com/jeriko.one/security/-/blob/master/squid/CVEs/CVE-2019-12522.txt Third Party Advisory
https://security.netapp.com/advisory/ntap-20210205-0006/ Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2019-12522
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-12522
History
Created Old Value New Value Data Type Notes
2022-05-10 07:20:24 Added to TrackCVE
2022-12-04 14:53:29 2020-04-15T19:15Z 2020-04-15T19:15:12 CVE Published Date updated
2022-12-04 14:53:29 2021-03-10T17:27:49 CVE Modified Date updated
2022-12-04 14:53:29 Analyzed Vulnerability Status updated