CVE-2023-49935

Gentoo Linux Security Advisory 202409-16

Severity Score

8.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

An issue was discovered in SchedMD Slurm 23.02.x and 23.11.x. There is Incorrect Access Control because of a slurmd Message Integrity Bypass. An attacker can reuse root-level authentication tokens during interaction with the slurmd process. This bypasses the RPC message hashes that protect against undesired MUNGE credential reuse. The fixed versions are 23.02.7 and 23.11.1.

Se descubrió un problema en SchedMD Slurm 23.02.x y 23.11.x. Hay un control de acceso incorrecto debido a una omisión de integridad de mensajes lenta. Un atacante puede reutilizar tokens de autenticación de nivel raíz durante la interacción con el proceso slurmd. Esto omite los hashes de mensajes RPC que protegen contra la reutilización no deseada de credenciales MUNGE. Las versiones fijas son 23.02.7 y 23.11.1.

This update for slurm_23_02 fixes the following issues. Prevent message extension attacks that could bypass the message hash. Prevent message hash bypass in slurmd which can allow an attacker to reuse root-level MUNGE tokens and escalate permissions. Prevent NULL pointer dereference on 'size_valp' overflow. Prevent double-xfree on error in '_unpack_node_reg_resp'. Prevent modified 'sbcast' RPCs from opening a file with the wrong group permissions. Add missing service file for slurmrestd. Fixed slurm upgrading to incompatible versions.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2023-12-03 CVE Reserved
2023-12-14 CVE Published
2024-08-02 CVE Updated
2025-05-04 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-613: Insufficient Session Expiration

CAPEC

References (4)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/63FEDDYEE2WK7FHWBHKON3OZVQI56WSQ	2024-01-03
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AYQS3LFGC4HE4WCW4L3NAA2I6FRIWMNO	2024-01-03
https://lists.schedmd.com/pipermail/slurm-announce/2023/000103.html	2024-01-03
https://www.schedmd.com/security-archive.php	2024-01-03

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Schedmd Search vendor "Schedmd"		Slurm Search vendor "Schedmd" for product "Slurm"				>= 23.02 < 23.02.7 Search vendor "Schedmd" for product "Slurm" and version " >= 23.02 < 23.02.7"		-		Affected
Schedmd Search vendor "Schedmd"		Slurm Search vendor "Schedmd" for product "Slurm"				23.11 Search vendor "Schedmd" for product "Slurm" and version "23.11"		-		Affected
Schedmd Search vendor "Schedmd"		Slurm Search vendor "Schedmd" for product "Slurm"				23.11 Search vendor "Schedmd" for product "Slurm" and version "23.11"		rc1		Affected