Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applicationsUpgrade curl
to version 8.7.0 or higher.
curl is a command line tool and library for transferring data with URL syntax, supporting DICT, FILE, FTP, FTPS, GOPHER, GOPHERS, HTTP, HTTPS, IMAP, IMAPS, LDAP, LDAPS, MQTT, POP3, POP3S, RTMP, RTMPS, RTSP, SCP, SFTP, SMB, SMBS, SMTP, SMTPS, TELNET and TFTP. libcurl offers a myriad of powerful features.
Affected versions of this package are vulnerable to Authentication Bypass by Spoofing due to an error in the logic for removing protocols. This flaw allows a command that explicitly disables all protocols to still perform requests using the default set of protocols. This issue is triggered when the set of selected protocols disables the entire set of available protocols, which is a command with no practical use and, thus, unlikely to be encountered in real situations.
Note
Inspect any scripts that construct curl commands with --proto
options to ensure at least one allowed protocol.