VulnerabilityModified
CVE-2019-12522
This makes it trivial for an attacker who has compromised the child process to escalate their privileges back to root.
MEDIUM 4.5EPSS 0.34%
Does this matter?
Lower severity and a low EPSS score (0.34%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 4.5 MEDIUMCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
- EPSS
- 0.34% probability · 28th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-269
- Affected
- squid-cache/squid
- Source
- cve@mitre.org
References
- https://gitlab.com/jeriko.one/security/-/blob/master/squid/CVEs/CVE-2019-12522.txtThird Party Advisory
- https://security.netapp.com/advisory/ntap-20210205-0006/Third Party Advisory
- https://gitlab.com/jeriko.one/security/-/blob/master/squid/CVEs/CVE-2019-12522.txtThird Party Advisory
- https://security.netapp.com/advisory/ntap-20210205-0006/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.