CVE-2022-43551
Severity
7.5HIGH
EPSS
0.0%
top 87.21%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedDec 23
Latest updateApr 15
Description
A vulnerability exists in curl <7.87.0 HSTS check that could be bypassed to trick it to keep using HTTP. Using its HSTS support, curl can be instructed to use HTTPS instead of using an insecure clear-text HTTP step even when HTTP is provided in the URL. However, the HSTS mechanism could be bypassed if the host name in the given URL first uses IDN characters that get replaced to ASCII counterparts as part of the IDN conversion. Like using the character UTF-8 U+3002 (IDEOGRAPHIC FULL STOP) instead…
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NExploitability: 3.9 | Impact: 3.6
Affected Packages5 packages
Also affects: Fedora 37
🔴Vulnerability Details
4📋Vendor Advisories
6Microsoft▶
A vulnerability exists in curl <7.87.0 HSTS check that could be bypassed to trick it to keep using HTTP. Using its HSTS support curl can be instructed to use HTTPS instead of using an insecure clear-t↗2022-12-13