An issue was discovered in Squid 3.x and 4.x through 4.8. It allows attackers to smuggle HTTP requests through frontend software to a Squid instance that splits the HTTP Request pipeline differently. The resulting Response messages corrupt caches (between a client and Squid) with attacker-controlled content at arbitrary URLs. Effects are isolated to software between the attacker client and Squid. There are no effects on Squid itself, nor on any upstream servers. The issue is related to a request header containing whitespace between a header name and a colon.
History

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cve-icon MITRE Information

Status: PUBLISHED

Assigner: mitre

Published: 2019-11-26T16:15:42

Updated: 2020-07-10T23:06:15

Reserved: 2019-11-04T00:00:00


Link: CVE-2019-18678

JSON object: View

cve-icon NVD Information

Status : Modified

Published: 2019-11-26T17:15:12.983

Modified: 2023-11-07T03:06:53.910


Link: CVE-2019-18678

JSON object: View

cve-icon Redhat Information

No data.

CWE