#VU62641 Information disclosure in cURL - CVE-2022-27774
Published: April 27, 2022
Vulnerability identifier: #VU62641
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2022-27774
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
cURL
cURL
Software vendor:
curl.haxx.se
curl.haxx.se
Description
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to curl attempts to follow redirects during authentication process and does not consider different port numbers or protocols to be separate authentication targets. If the web application performs redirection to a different port number of protocol, cURL will allow such redirection and will pass credentials. It could also leak the TLS SRP credentials this way.
By default, curl only allows redirects to HTTP(S) and FTP(S), but can be asked to allow redirects to all protocols curl supports.
Remediation
Install updates from vendor's website.