VulnerabilityModified

CVE-2012-2213

Squid 3.1.9 allows remote attackers to bypass the access configuration for the CONNECT method by providing an arbitrary allowed hostname in the Host HTTP header.

MEDIUM 5.0EPSS 12.2%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 12.2%, higher than 96% of all known CVEs. Patch or mitigate before the next change window.

Description

Squid 3.1.9 allows remote attackers to bypass the access configuration for the CONNECT method by providing an arbitrary allowed hostname in the Host HTTP header. NOTE: this issue might not be reproducible, because the researcher is unable to provide a squid.conf file for a vulnerable system, and the observed behavior is consistent with a squid.conf file that was (perhaps inadvertently) designed to allow access based on a "req_header Host" acl regex that matches www.uol.com.br

CVSS 2.0: 5.0 MEDIUMAV:N/AC:L/Au:N/C:P/I:N/A:N
EPSS: 12.18% probability · 96th percentile
CISA KEV: Not listed
Weakness: CWE-264
Affected: squid-cache/squid
Source: cve@mitre.org

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.