Red Hat Directory Server 11 update for the redhat-ds:11 module



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-35518
CWE-ID CWE-200
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Red Hat Directory Server
Server applications / Directory software, identity management

Vendor Red Hat Inc.

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Information disclosure

EUVDB-ID: #VU54105

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-35518

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to excessive data output by the application. When binding against a DN during authentication, the reply from 389-ds-base will be different whether the DN exists or not. This can be used by an unauthenticated attacker to check the existence of an entry in the LDAP database.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat Directory Server: 11

CPE2.3 External links

https://access.redhat.com/errata/RHSA-2021:1243


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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