The curl URL parser wrongly accepts percent-encoded URL separators like '/'when decoding the host name part of a URL making it a different URL usingthe wrong host name when it is later retrieved.For example a URL like `http://example.com%2F127.0.0.1/` would be allowed bythe parser and get transposed into `http://example.com/127.0.0.1/`. This flawcan be used to circumvent filters checks and more.

🗓️ 15 Jun 2022 07:00:00Reported by MicrosoftType

Curl URL parser decodes percent-encoded host separators, causing wrong host and bypassing filters.

Reporter	Title	Published	Views	Family All 80
IBM Security Bulletins	Security Bulletin: Multiple vulnerabilities in Curl affect PowerSC	23 Sep 202222:05	–	ibm
IBM Security Bulletins	Security Bulletin: Vulnerability in libcURL affect IBM Rational ClearCase ( CVE-2022-27778, CVE-2022-27779, CVE-2022-27780, CVE-2022-27782, CVE-2022-30115, CVE-2022-27774 )	25 Jul 202214:49	–	ibm
IBM Security Bulletins	Security Bulletin: IBM MaaS360 Cloud Extender Agent and Base Module use libcurl with multiple known vulnerabilities	6 Oct 202204:10	–	ibm
IBM Security Bulletins	Security Bulletin: IBM MQ is vulnerable to issues with libcurl (CVE-2022-27780, CVE-2022-30115)	25 Aug 202215:01	–	ibm
IBM Security Bulletins	Security Bulletin: IBM® Engineering Requirements Management DOORS/DWA vulnerabilities fixed in 9.7.2.7	24 Oct 202411:46	–	ibm
FreeBSD	curl -- Multiple vulnerabilities	11 May 202200:00	–	freebsd
ALT Linux	Security fix for the ALT Linux 10 package curl version 7.83.1-alt1	19 May 202200:00	–	altlinux
ATTACKERKB	CVE-2022-27780	2 Jun 202214:15	–	attackerkb
Tenable Nessus	Amazon Linux 2022 : curl, curl-minimal, libcurl (ALAS2022-2022-065)	6 Sep 202200:00	–	nessus
Tenable Nessus	Amazon Linux 2022 : curl, curl-minimal, libcurl (ALAS2022-2022-206)	4 Nov 202200:00	–	nessus