Inadequate Verification in Prosody's mod_auth_ldap and mod_auth_ldap2 Modules
CVE-2020-8086

9.8CRITICAL

Key Information:

Vendor

Prosody

Status
Mod Auth Ldap2
Mod Auth Ldap
Vendor
CVE Published:
28 January 2020

What is CVE-2020-8086?

The mod_auth_ldap and mod_auth_ldap2 modules in Prosody prior to January 27, 2020, have a flaw where the XMPP address used in the is_admin() function isn't properly verified. This weakness can be exploited by remote attackers through a manipulated XMPP username that matches an existing local admin's username, thereby granting them unauthorized administrative privileges.

References

https://hg.prosody.im/prosody-modules/log/tip/mod_auth_ld...
x_refsource_MISC
https://hg.prosody.im/prosody-modules/log/tip/mod_auth_ld...
x_refsource_MISC
https://prosody.im/security/advisory_20200128/
x_refsource_CONFIRM

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.