Vulnerability identifier: #VU27677
Vulnerability risk: Low
CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-74
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Squid
Server applications /
IDS/IPS systems, Firewalls and proxy servers
Vendor: Squid-cache.org
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.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Squid: 4.0 - 4.8
External links
http://github.com/squid-cache/squid/pull/504
http://github.com/squid-cache/squid/pull/505
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.