An issue was discovered in Squid before 4.13 and 5.x before 5.0.4. Due to incorrect data validation, HTTP Request Smuggling attacks may succeed against HTTP and HTTPS traffic. This leads to cache poisoning. This allows any client, including browser scripts, to bypass local security and poison the proxy cache and any downstream caches with content from an arbitrary source. When configured for relaxed header parsing (the default), Squid relays headers containing whitespace characters to upstream servers. When this occurs as a prefix to a Content-Length header, the frame length specified will be ignored by Squid (allowing for a conflicting length to be used from another Content-Length header) but relayed upstream.
Metrics
Affected Vendors & Products
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: mitre
Published: 2020-09-02T16:34:04
Updated: 2024-08-04T13:30:21.842Z
Reserved: 2020-07-17T00:00:00
Link: CVE-2020-15810
Vulnrichment
No data.
NVD
Status : Modified
Published: 2020-09-02T17:15:11.627
Modified: 2024-11-21T05:06:13.550
Link: CVE-2020-15810
Redhat