Improper Neutralization of Special Elements in Output Used by a Downstream Component in Squid - CVE-2019-18860
Published: May 11, 2020
Vulnerability identifier: #VU27677
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2019-18860
CWE-ID: CWE-74
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Squid-cache.org
Affected software:
Squid
Squid
Detailed vulnerability description
The vulnerability allows a remote attacker to perform cache poisoning attack.
The vulnerability exists due to improper input validation of HTML code within the hostname parameter in cachemgr.cgi. A remote attacker can send a specially crated HTTP request and poison the cache.
How to mitigate CVE-2019-18860
Install updates from vendor's website.