Security Bulletin: IBM i Service Tools Server (SST) is vulnerable to SST user profile enumeration [CVE-2024-31878].

Summary

IBM i Service Tools Server is vulnerable to SST user profile enumeration by a remote actor as described in the vulnerability details section. This bulletin identifies the steps to take to address the vulnerability as described in the remediation/fixes section.

Vulnerability Details

CVEID:CVE-2024-31878
**DESCRIPTION:**IBM i Service Tools Server (SST) is vulnerable to SST user enumeration by a remote attacker. This vulnerability can be used by a malicious actor to gather information about SST users that can be targeted in further attacks.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/287538 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)

Affected Products and Versions

Remediation/Fixes

The issue can be fixed by applying a PTF to IBM i. IBM i releases 7.5, 7.4, 7.3, and 7.2 will be fixed.

The IBM i PTF numbers for 5770-999 contain the fix for the vulnerability.

IBM i Release| 5770-SS1 Option 3
PTF Numbers| PTF Download Link
—|—|—
7.5| MJ00301| <https://www.ibm.com/mysupport/s/fix-information?legacy=MJ00301&gt;
7.4| MJ00300| <https://www.ibm.com/mysupport/s/fix-information?legacy=MJ00300&gt;
7.3| MJ00299| <https://www.ibm.com/mysupport/s/fix-information?legacy=MJ00299&gt;
7.2| MJ00286| <https://www.ibm.com/mysupport/s/fix-information?legacy=MJ00286&gt;

<https://www.ibm.com/support/fixcentral&gt;

Important note: IBM recommends that all users running unsupported versions of affected products upgrade to supported and fixed version of affected products.

Workarounds and Mitigations

None.