Link following in IBM Cloud Pak System

1) Link following

EUVDB-ID: #VU81948

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-4759

CWE-ID: CWE-59 - Improper Link Resolution Before File Access ('Link Following')

Exploit availability: No

Description

The vulnerability allows a remote attacker to overwrite files on the system.

The vulnerability exists due to an insecure link following. A remote attacker can place a specially crafted symbolic link into the repository, trick the victim into cloning it and overwrite arbitrary files on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

IBM Cloud Pak System: before 2.3.3.7 iFix 01

External links

http://www.ibm.com/support/pages/node/7101429

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.