Man-in-the-middle attack in PostgreSQL Java Database Connectivity

1) Man-in-the-middle attack

EUVDB-ID: #VU14591

Risk: Low

CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-10936

CWE-ID: CWE-300 - Channel Accessible by Non-Endpoint ('Man-in-the-Middle')

Exploit availability: No

Description

The vulnerability allows a remote attacker to conduct man-in-the-middle attacks on the target system.

The vulnerability exists in the PostgreSQL Java Database Connectivity (JDBC) driver due to insufficient validation of hostnames by the affected software. A remote unauthenticated attacker can masquerade as a trusted server on the network, conduct a man-in-the-middle attack and conduct further attacks.

Mitigation

Update to version 42.2.5.

Vulnerable software versions

PostgreSQL Java Database Connectivity: 42.0.0 - 42.2.4

CPE2.3

• cpe:2.3:h:postgresql_global_development_group:postgresql_java_database_connectivity:42.0.0:*:*:*:*:*:*:*
• cpe:2.3:h:postgresql_global_development_group:postgresql_java_database_connectivity:42.1.0:*:*:*:*:*:*:*
• cpe:2.3:h:postgresql_global_development_group:postgresql_java_database_connectivity:42.1.1:*:*:*:*:*:*:*

External links

https://www.postgresql.org/about/news/1883/

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.