SUSE update for Maintenance update for SUSE Manager 4.3: Server, Proxy and Retail Branch Server

1) Improper Certificate Validation

EUVDB-ID: #VU78913

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-29409

CWE-ID: CWE-295 - Improper Certificate Validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to verifying certificate chains containing large RSA keys is slow. A remote attacker can cause a client/server to expend significant CPU time verifying signatures.

Mitigation

Update the affected package Maintenance update for SUSE Manager 4.3: Server, Proxy and Retail Branch Server to the latest version.

Vulnerable software versions

SUSE Manager Proxy Module: 4.3

SUSE Manager Server Module: 4.3

SUSE Manager Retail Branch Server: 4.3

SUSE Manager Server: 4.3

SUSE Manager Proxy: 4.3

susemanager-tools: before 4.3.31-150400.3.36.12

inter-server-sync-debuginfo: before 0.3.0-150400.3.21.15

prometheus-postgres_exporter: before 0.10.1-150400.3.6.17

susemanager: before 4.3.31-150400.3.36.12

hub-xmlrpc-api: before 0.7-150400.5.9.15

inter-server-sync: before 0.3.0-150400.3.21.15

spacewalk-backend-sql: before 4.3.23-150400.3.27.19

spacewalk-java-postgresql: before 4.3.66-150400.3.60.1

spacewalk-backend-config-files: before 4.3.23-150400.3.27.19

spacewalk-backend-xmlrpc: before 4.3.23-150400.3.27.19

spacewalk-backend-config-files-tool: before 4.3.23-150400.3.27.19

spacewalk-backend-sql-postgresql: before 4.3.23-150400.3.27.19

grafana-formula: before 0.9.0-150400.3.12.1

susemanager-sls: before 4.3.35-150400.3.31.12

spacewalk-html: before 4.3.33-150400.3.27.16

spacewalk-backend-tools: before 4.3.23-150400.3.27.19

spacewalk-backend-app: before 4.3.23-150400.3.27.19

spacewalk-backend-server: before 4.3.23-150400.3.27.19

uyuni-config-modules: before 4.3.35-150400.3.31.12

spacewalk-setup: before 4.3.18-150400.3.27.13

supportutils-plugin-susemanager: before 4.3.9-150400.3.15.13

spacewalk-backend-iss-export: before 4.3.23-150400.3.27.19

spacewalk-taskomatic: before 4.3.66-150400.3.60.1

spacewalk-java: before 4.3.66-150400.3.60.1

spacewalk-admin: before 4.3.13-150400.3.12.13

image-sync-formula: before 0.1.1692188980.9aa0455-150400.3.15.13

spacewalk-backend-iss: before 4.3.23-150400.3.27.19

cobbler: before 3.3.3-150400.5.33.13

saltboot-formula: before 0.1.1692188980.9aa0455-150400.3.12.13

susemanager-schema-utility: before 4.3.20-150400.3.24.17

susemanager-docs_en: before 4.3-150400.9.38.2

spacewalk-java-config: before 4.3.66-150400.3.60.1

spacewalk-backend-config-files-common: before 4.3.23-150400.3.27.19

spacewalk-backend-xml-export-libs: before 4.3.23-150400.3.27.19

spacewalk-backend-package-push-server: before 4.3.23-150400.3.27.19

spacewalk-java-lib: before 4.3.66-150400.3.60.1

billing-data-service: before 0.3-150400.10.6.13

spacewalk-backend-applet: before 4.3.23-150400.3.27.19

prometheus-exporters-formula: before 1.3.0-150400.3.3.13

spacewalk-config: before 4.3.11-150400.3.9.13

spacewalk-base: before 4.3.33-150400.3.27.16

susemanager-schema: before 4.3.20-150400.3.24.17

susemanager-docs_en-pdf: before 4.3-150400.9.38.2

python3-uyuni-common-libs: before 4.3.9-150400.3.15.13

supportutils-plugin-susemanager-proxy: before 4.3.3-150400.3.3.13

spacewalk-base-minimal: before 4.3.33-150400.3.27.16

spacewalk-certs-tools: before 4.3.19-150400.3.18.13

spacecmd: before 4.3.23-150400.3.24.13

spacewalk-backend: before 4.3.23-150400.3.27.19

supportutils-plugin-susemanager-client: before 4.3.3-150400.3.3.13

python3-spacewalk-certs-tools: before 4.3.19-150400.3.18.13

spacewalk-base-minimal-config: before 4.3.33-150400.3.27.16

CPE2.3

• cpe:2.3:o:suse:suse_manager_proxy_module:4.3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_manager_server_module:4.3:*:*:*:*:*:*:*
• 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:a:suse:susemanager-tools:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:inter-server-sync-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:prometheus-postgres_exporter:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:susemanager:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:hub-xmlrpc-api:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:inter-server-sync:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:spacewalk-backend-sql:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:spacewalk-java-postgresql:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:spacewalk-backend-config-files:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:spacewalk-backend-xmlrpc:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:spacewalk-backend-config-files-tool:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:spacewalk-backend-sql-postgresql:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:grafana-formula:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:susemanager-sls:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:spacewalk-html:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:spacewalk-backend-tools:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:spacewalk-backend-app:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:spacewalk-backend-server:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:uyuni-config-modules:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:spacewalk-setup:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:supportutils-plugin-susemanager:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:spacewalk-backend-iss-export:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:spacewalk-taskomatic:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:spacewalk-java:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:spacewalk-admin:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:image-sync-formula:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:spacewalk-backend-iss:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:cobbler:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:saltboot-formula:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:susemanager-schema-utility:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:susemanager-docs_en:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:spacewalk-java-config:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:spacewalk-backend-config-files-common:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:spacewalk-backend-xml-export-libs:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:spacewalk-backend-package-push-server:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:spacewalk-java-lib:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:billing-data-service:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:spacewalk-backend-applet:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:prometheus-exporters-formula:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:spacewalk-config:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:spacewalk-base:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:susemanager-schema:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:susemanager-docs_en-pdf:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:python3-uyuni-common-libs:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:supportutils-plugin-susemanager-proxy:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:spacewalk-base-minimal:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:spacewalk-certs-tools:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:spacecmd:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:spacewalk-backend:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:supportutils-plugin-susemanager-client:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:python3-spacewalk-certs-tools:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:spacewalk-base-minimal-config:*:*:*:*:*:suse_linux:*:*

External links

https://www.suse.com/support/update/announcement/2023/suse-su-20233861-1/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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