An issue was discovered in http/ContentLengthInterpreter.cc in Squid before 4.12 and 5.x before 5.0.3. A Request Smuggling and Poisoning attack can succeed against the HTTP cache. The client sends an HTTP request with a Content-Length header containing "+\ "-" or an uncommon shell whitespace character prefix to the length field-value.
{
"unresolved_ranges": [
{
"source": "CPE_RANGE",
"vendor_product": "squid-cache:squid",
"extracted_events": [
{
"introduced": "2.0"
},
{
"last_affected": "2.6"
}
],
"cpes": [
"cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:*"
]
},
{
"source": "CPE_STRING",
"vendor_product": "fedoraproject:fedora",
"extracted_events": [
{
"introduced": "31"
},
{
"last_affected": "31"
}
],
"cpes": [
"cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*"
]
},
{
"source": "CPE_STRING",
"vendor_product": "squid-cache:squid",
"extracted_events": [
{
"introduced": "2.7"
},
{
"last_affected": "2.7"
},
{
"introduced": "2.7-stable2"
},
{
"last_affected": "2.7-stable2"
},
{
"introduced": "2.7-stable3"
},
{
"last_affected": "2.7-stable3"
},
{
"introduced": "2.7-stable4"
},
{
"last_affected": "2.7-stable4"
},
{
"introduced": "2.7-stable5"
},
{
"last_affected": "2.7-stable5"
},
{
"introduced": "2.7-stable6"
},
{
"last_affected": "2.7-stable6"
},
{
"introduced": "2.7-stable7"
},
{
"last_affected": "2.7-stable7"
},
{
"introduced": "2.7-stable8"
},
{
"last_affected": "2.7-stable8"
},
{
"introduced": "2.7-stable9"
},
{
"last_affected": "2.7-stable9"
}
],
"cpes": [
"cpe:2.3:a:squid-cache:squid:2.7:*:*:*:*:*:*:*",
"cpe:2.3:a:squid-cache:squid:2.7:stable2:*:*:*:*:*:*",
"cpe:2.3:a:squid-cache:squid:2.7:stable3:*:*:*:*:*:*",
"cpe:2.3:a:squid-cache:squid:2.7:stable4:*:*:*:*:*:*",
"cpe:2.3:a:squid-cache:squid:2.7:stable5:*:*:*:*:*:*",
"cpe:2.3:a:squid-cache:squid:2.7:stable6:*:*:*:*:*:*",
"cpe:2.3:a:squid-cache:squid:2.7:stable7:*:*:*:*:*:*",
"cpe:2.3:a:squid-cache:squid:2.7:stable8:*:*:*:*:*:*",
"cpe:2.3:a:squid-cache:squid:2.7:stable9:*:*:*:*:*:*"
]
}
]
}{
"cpe": "cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:*",
"source": "CPE_RANGE",
"extracted_events": [
{
"introduced": "3.1"
},
{
"last_affected": "3.5.28"
},
{
"introduced": "4.0"
},
{
"fixed": "4.12"
},
{
"introduced": "5.0"
},
{
"fixed": "5.0.3"
}
]
}