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CVE-2021-35473

Date: November 9, 2024

An issue was discovered in LemonLDAP::NG before 2.0.12. There is a missing expiration check in the OAuth2.0 handler, i.e., it does not verify access token validity. An attacker can use a expired access token from an OIDC client to access the OAuth2 handler The earliest affected version is 2.0.4.

Severity Score

Related Resources (7)

https://security-tracker.debian.org/tracker/CVE-2021-35473
https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/-/issues/2549
https://nvd.nist.gov/vuln/detail/CVE-2021-35473
https://access.redhat.com/security/cve/CVE-2021-35473
https://people.canonical.com/~ubuntu-security/cve/CVE-2021-35473
https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/-/tags
https://www.mend.io/vulnerability-database/CVE-2021-35473

Severity Score

Weakness Type (CWE)

Insufficient Session Expiration

CWE-613

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): NONE

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