CVE-2021-42770

MEDIUMMonitor

Published:Nov 8, 2021(4 years ago)

Modified:Nov 21, 2024

Remote ExploitNo Auth RequiredScope ChangesLow Complexity

Vulnerability Description

A Cross-site scripting (XSS) vulnerability was discovered in OPNsense before 21.7.4 via the LDAP attribute return in the authentication tester.

Attack Characteristics

Network AccessLow ComplexityNo Auth NeededUser Interaction Required

🤖

AI analysis not yet available

Plain-English explanation, risk summary, and remediation steps will appear here once AI analysis is complete.

No Fix Known

No patch has been released yet. Apply workarounds or mitigations where available.

Affected Software

Vendor	Product	Versions	Fixed In
opnsense	opnsense	19.7.0	-
opnsense	opnsense	21.7.0 - 21.7.4	-

Timeline

Published
CVE disclosed publicly
Nov 8, 20214 years ago
Last Modified
Most recent update
Nov 21, 20241 year ago
Indexed to CVEInsight
Added to this platform
Mar 29, 20261 month ago

References

https://cert.orange.comThird Party Advisory
https://github.com/orangecertcc/security-research/security/advisories/...Exploit
https://opnsense.org/opnsense-21-7-4-released/Release Notes

CVSS Score

v3.1

6.1/ 10.0

MEDIUM

AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

At a Glance

Affected Products

References

opnsense / opnsense

CVE-2021-42770

Vulnerability Description

Attack Characteristics

Affected Software

Timeline

References

CVSS Score

At a Glance

Official Sources

CVSS v3 Vector

Impact Analysis

CVE-2021-42770

✦ Vulnerability Description

Attack Characteristics

Affected Software

Timeline

References

CVSS Score

At a Glance

Official Sources

CVSS v3 Vector

Impact Analysis

Vulnerability Description