CVE-2018-2451 Auth bypass in SAP HANA Extended Application Services

Medium 6.6 Published 14 Aug 2018 Updated 5 Aug 2024

Attackers can reuse expired CLI session tokens to access resources after authorization revocation, requiring SAP HANA XS administrators to apply security patches.

Exploited in the wild: Not known
Login needed: An administrator
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2018-2451?

CVE-2018-2451 is a medium-severity authentication bypass vulnerability in SAP HANA Extended Application Services, published on 14 Aug 2018. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

XS Command-Line Interface (CLI) user sessions with the SAP HANA Extended Application Services (XS), version 1, advanced server may have an unintentional prolonged period of validity. Consequently, a platform user could access controller resources via active CLI session even after corresponding authorizations have been revoked meanwhile by an administrator user. Similarly, an attacker who managed to gain access to the platform user's session might misuse the session token even after the session has been closed.

Weakness: CWE-613

Which versions are affected by CVE-2018-2451?

It affects 1 product.

Products include Sap Hana Extended Application Services.

How do I fix CVE-2018-2451?

No fix has been published for CVE-2018-2451 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2018-2451 being exploited?

There is no known exploitation of CVE-2018-2451 in the wild and no public exploit code.

Sources

Also known as GHSA-w5mg-8gpq-pmwq.