Red Hat update for 389-ds-base

1) Brute-force attack

EUVDB-ID: #VU8118

Risk: Low

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:Clear]

CVE-ID: CVE-2017-7551

CWE-ID: CWE-307 - Improper Restriction of Excessive Authentication Attempts

Exploit availability: No

Description

The vulnerability allows remote users to perform brute-force attack on the target system.

The vulnerability exists due to different return codes returned on password attempts. A remote attacker can perform password brute-force attacks during account lockout and obtain valid user's credentials.

Successful exploitation of this vulnerability may result in unauthorized access to the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux for x86_64: 7.0

CPE2.3

• cpe:2.3:o:red_hat:red_hat_enterprise_linux:7.0:*:*:*:*:*:*:*

External links

https://access.redhat.com/errata/RHSA-2017:2569

Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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