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VPR Score: 4.4
SynopsisThe remote proxy server is potentially affected by a same-origin filtering bypass vulnerability.
DescriptionAccording to its banner, the version of Squid running on the remote host is prior to 3.5.18. It is, therefore, potentially affected by a Host header same-origin filtering bypass vulnerability. A remote attacker could exploit this issue to poison the cache by forcing a Host header value past same-origin security protections to cause Squid to contact the wrong origin server.
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.
Furthermore, the patch released to address this issue does not update the version given in the banner. If the patch has been applied properly, and the service has been restarted, then consider this to be a false positive.
SolutionUpgrade to Squid version 3.5.18 or later. Alternatively, apply the vendor-supplied patch.