CVE-2022-43551High· 7.5▾ TwilightA 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 prov…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 41.3 · likelihood 3.3 · exploitation 0
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Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
17%
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 of the common ASCII full stop (U+002E) .. Then in a subsequent request, it does not detect the HSTS state and makes a clear text transfer. Because it would store the info IDN encoded but look for it IDN decoded.
curl >= 7.77.0, < 7.87.0fedora = 37active_iq_unified_manageroncommand_insightoncommand_workflow_automationsnapcenteruniversal_forwarder >= 8.2.0, < 8.2.12universal_forwarder >= 9.0.0, < 9.0.6universal_forwarder = 9.1.0Upgrade past the affected range:
curl 7.87.0universal_forwarder 9.0.6Connected by shared product, vendor, weakness, or advisory.
CVE-2022-42916High· 7.5In curl before 7.86.0, the HSTS check could be bypassed to trick it into staying with HTTP
CVE-2022-43552Medium· 5.9A use after free vulnerability exists in curl <7.87.0
CVE-2021-22946High· 7.5A user can tell curl >= 7.20.0 and <= 7.78.0 to require a successful upgrade to TLS when speaking to an IMAP, POP3 or FTP server (`--ssl-reqd` on the command line or`CURLOPT_USE_SSL` set to `CURLUSESSL_CONTROL` or `CURLUSESSL_ALL` withli…
CVE-2021-22923Medium· 5.3When curl is instructed to get content using the metalink feature, and a user name and password are used to download the metalink XML file, those same credentials are then subsequently passed on to each of the servers from which curl wil…
CVE-2022-42915High· 8.1curl before 7.86.0 has a double free
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