Improper Authorization Affecting curl package, versions [,7.50.1)


Severity

Recommended
0.0
high
0
10

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

Threat Intelligence

EPSS
0.5% (77th percentile)

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  • Snyk IDSNYK-UNMANAGED-CURL-2317542
  • published14 Dec 2021
  • disclosed10 Aug 2016
  • creditUnknown

Introduced: 10 Aug 2016

CVE-2016-5420  (opens in a new tab)
CWE-285  (opens in a new tab)

How to fix?

Upgrade curl to version 7.50.1 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 Authorization curl and libcurl before 7.50.1 do not check the client certificate when choosing the TLS connection to reuse, which might allow remote attackers to hijack the authentication of the connection by leveraging a previously created connection with a different client certificate.

CVSS Scores

version 3.1