SUSE update for salt

1) UNIX symbolic link following

EUVDB-ID: #VU82944

Risk: Low

CVSSv4.0: 5.8 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:U/U:Clear]

CVE-ID: CVE-2023-34049

CWE-ID: CWE-61 - UNIX Symbolic Link (Symlink) Following

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a symlink following issue in Salt-SSH pre-flight option. A local user can create a specially crafted symbolic link to an empty file on the system, wait for the salt to create the file for further execution, update the symbolic link and point it to another file that is under attacker's control and execute the file with root privileges.

Mitigation

Update the affected package salt to the latest version.

Vulnerable software versions

openSUSE Leap Micro: 5.3 - 5.4

Transactional Server Module: 15-SP4

SUSE Linux Enterprise Micro for Rancher: 5.3 - 5.4

Server Applications Module: 15-SP4

SUSE Linux Enterprise Micro: 5.3 - 5.4

SUSE Linux Enterprise Server for SAP Applications 15: SP4

SUSE Linux Enterprise Server 15: SP4

SUSE Linux Enterprise Real Time 15: SP4

SUSE Linux Enterprise High Performance Computing 15: SP4

SUSE Linux Enterprise Desktop 15: SP4

Basesystem Module: 15-SP4

SUSE Manager Retail Branch Server: 4.3

SUSE Manager Server: 4.3

SUSE Manager Proxy: 4.3

openSUSE Leap: 15.4

salt-zsh-completion: before 3006.0-150400.8.49.2

salt-fish-completion: before 3006.0-150400.8.49.2

salt-bash-completion: before 3006.0-150400.8.49.2

python3-salt: before 3006.0-150400.8.49.2

salt-ssh: before 3006.0-150400.8.49.2

salt-cloud: before 3006.0-150400.8.49.2

salt-api: before 3006.0-150400.8.49.2

python3-salt-testsuite: before 3006.0-150400.8.49.2

salt-doc: before 3006.0-150400.8.49.2

salt-syndic: before 3006.0-150400.8.49.2

salt-minion: before 3006.0-150400.8.49.2

salt-standalone-formulas-configuration: before 3006.0-150400.8.49.2

salt: before 3006.0-150400.8.49.2

salt-transactional-update: before 3006.0-150400.8.49.2

salt-proxy: before 3006.0-150400.8.49.2

salt-master: before 3006.0-150400.8.49.2

CPE2.3

• cpe:2.3:o:suse:opensuse_leap_micro:5.3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:opensuse_leap_micro:5.4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:transactional_server_module:15-SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_micro_for_rancher:5.3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_micro_for_rancher:5.4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:server_applications_module:15-SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_micro:5.3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_micro:5.4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_real_time_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_desktop_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:basesystem_module:15-SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_manager_retail_branch_server:4.3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_manager_server:4.3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_manager_proxy:4.3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:opensuse_leap:15.4:*:*:*:*:*:*:*
• cpe:2.3:a:suse:salt-zsh-completion:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:salt-fish-completion:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:salt-bash-completion:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:python3-salt:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:salt-ssh:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:salt-cloud:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:salt-api:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:python3-salt-testsuite:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:salt-doc:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:salt-syndic:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:salt-minion:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:salt-standalone-formulas-configuration:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:salt:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:salt-transactional-update:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:salt-proxy:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:salt-master:*:*:*:*:*:suse_linux:*:*

External links

https://www.suse.com/support/update/announcement/2023/suse-su-20234387-1/

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.