Improper Certificate Validation Affecting curl package, versions [,7.53.0)


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.16% (54th percentile)

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  • Snyk IDSNYK-UNMANAGED-CURL-2317490
  • published14 Dec 2021
  • disclosed27 Jul 2018
  • creditUnknown

Introduced: 27 Jul 2018

CVE-2017-2629  (opens in a new tab)
CWE-295  (opens in a new tab)

How to fix?

Upgrade curl to version 7.53.0 or higher.

Overview

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 Improper Certificate Validation curl before 7.53.0 has an incorrect TLS Certificate Status Request extension feature that asks for a fresh proof of the server's certificate's validity in the code that checks for a test success or failure. It ends up always thinking there's valid proof, even when there is none or if the server doesn't support the TLS extension in question. This could lead to users not detecting when a server's certificate goes invalid or otherwise be mislead that the server is in a better shape than it is in reality. This flaw also exists in the command line tool (--cert-status).

References

CVSS Scores

version 3.1