CVE-2021-42770

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-42770
A Cross-site scripting (XSS) vulnerability was discovered in OPNsense before 21.7.4 via the LDAP attribute return in the authentication tester.

6.1 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

4.3 /10

CVSS v2.0 : MEDIUM

V2 Legend

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

Exploitability : 8.6 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

References
Link Resource
https://cert.orange.com Third Party Advisory
https://github.com/orangecertcc/security-research/security/advisories/GHSA-r32j-xgg3-w2rw Exploit Third Party Advisory
https://opnsense.org/opnsense-21-7-4-released/ Release Notes Vendor Advisory
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:opnsense:opnsense:*:*:*:*:*:*:*:*
cpe:2.3:a:opnsense:opnsense:*:*:*:*:*:*:*:*
History

28 Jul 2022, 17:57

Type Values Removed Values Added
References (MISC) https://github.com/orangecertcc/security-research/security/advisories/GHSA-r32j-xgg3-w2rw - (MISC) https://github.com/orangecertcc/security-research/security/advisories/GHSA-r32j-xgg3-w2rw - Exploit, Third Party Advisory

22 Apr 2022, 18:15

Type Values Removed Values Added
References
  • (MISC) https://github.com/orangecertcc/security-research/security/advisories/GHSA-r32j-xgg3-w2rw -

09 Nov 2021, 20:00

Type Values Removed Values Added
CPE cpe:2.3:a:opnsense:opnsense:*:*:*:*:*:*:*:*
CWE CWE-79
CVSS v2 : unknown
v3 : unknown 		v2 : 4.3
v3 : 6.1
References (MISC) https://cert.orange.com - (MISC) https://cert.orange.com - Third Party Advisory
References (CONFIRM) https://opnsense.org/opnsense-21-7-4-released/ - (CONFIRM) https://opnsense.org/opnsense-21-7-4-released/ - Release Notes, Vendor Advisory

08 Nov 2021, 16:15

Type Values Removed Values Added
New CVE
Information

Published : 2021-11-08 16:15

Updated : 2023-12-10 14:09

NVD link : CVE-2021-42770

Mitre link : CVE-2021-42770

CVE.ORG link : CVE-2021-42770

JSON object : View

Products Affected

opnsense

  • opnsense
CWE
CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')