CVE-2021-22876

medium

Description

curl 7.1.1 to and including 7.75.0 is vulnerable to an "Exposure of Private Personal Information to an Unauthorized Actor" by leaking credentials in the HTTP Referer: header. libcurl does not strip off user credentials from the URL when automatically populating the Referer: HTTP request header field in outgoing HTTP requests, and therefore risks leaking sensitive data to the server that is the target of the second HTTP request.

References

https://curl.se/docs/CVE-2021-22876.html

https://hackerone.com/reports/1101882

https://lists.fedoraproject.org/archives/list/[email protected]/message/ITVWPVGLFISU5BJC2BXBRYSDXTXE2YGC/

https://lists.fedoraproject.org/archives/list/[email protected]/message/KQUIOYX2KUU6FIUZVB5WWZ6JHSSYSQWJ/

https://lists.fedoraproject.org/archives/list/[email protected]/message/2ZC5BMIOKLBQJSFCHEDN2G2C2SH274BP/

https://lists.debian.org/debian-lts-announce/2021/05/msg00019.html

https://security.netapp.com/advisory/ntap-20210521-0007/

https://security.gentoo.org/glsa/202105-36

https://www.oracle.com//security-alerts/cpujul2021.html

https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf

Details

Source: MITRE

Published: 2021-04-01

Updated: 2022-04-06

Type: CWE-200

Risk Information

CVSS v2

Base Score: 5

Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N

Impact Score: 2.9

Exploitability Score: 10

Severity: MEDIUM

CVSS v3

Base Score: 5.3

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Impact Score: 1.4

Exploitability Score: 3.9

Severity: MEDIUM