Cleartext Transmission of Sensitive Information Affecting curl package, versions [7.77.0,7.87.0)


Severity

Recommended
0.0
medium
0
10

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

Threat Intelligence

Exploit Maturity
Proof of concept
EPSS
0.1% (44th percentile)

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  • Snyk IDSNYK-UNMANAGED-CURL-3179611
  • published21 Dec 2022
  • disclosed21 Dec 2022
  • creditHiroki Kurosawa

Introduced: 21 Dec 2022

CVE-2022-43551  (opens in a new tab)
CWE-319  (opens in a new tab)

How to fix?

Upgrade curl to version 7.87.0 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 Cleartext Transmission of Sensitive Information when bypassing HSTS check and keep it using HTTP.

PoC

curl --hsts hsts.txt https://curl%E3%80%82se
curl --hsts hsts.txt http://curl%E3%80%82se

CVSS Scores

version 3.1