SUSE update for bouncycastle

1) LDAP injection

EUVDB-ID: #VU78328

Risk: Medium

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

CVE-ID: CVE-2023-33201

CWE-ID: CWE-90 - Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection')

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to improper input validation in applications that use an LDAP CertStore from Bouncy Castle to validate X.509 certificates. During the certificate validation process, Bouncy Castle inserts the certificate's Subject Name into an LDAP search filter without any escaping, which leads to an LDAP injection vulnerability. A remote non-authenticated attacker can use a specially crafted X.509 certificate to bypass authentication process and gain unauthorized access to the application.

Mitigation

Update the affected package bouncycastle to the latest version.

Vulnerable software versions

Development Tools Module: 15-SP4 - 15-SP5

SUSE Linux Enterprise Server for SAP Applications 15: SP2 - SP5

SUSE Linux Enterprise Server 15: SP2 - SP5

SUSE Linux Enterprise Real Time 15: SP3 - SP5

SUSE Linux Enterprise High Performance Computing 15: SP2 - SP5

SUSE Linux Enterprise Desktop 15: SP4 - SP5

SUSE Linux Enterprise Server 15 SP3 LTSS: 15-SP3

SUSE Linux Enterprise Server 15 SP2 LTSS: 15-SP2

SUSE Linux Enterprise High Performance Computing LTSS 15: SP3

SUSE Linux Enterprise High Performance Computing ESPOS 15: SP3

SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS: 15-SP2

openSUSE Leap: 15.4 - 15.5

SUSE Enterprise Storage: 7.1

SUSE Manager Retail Branch Server: 4.3

SUSE Manager Server: 4.3

SUSE Manager Proxy: 4.3

bouncycastle-jmail: before 1.74-150200.3.21.1

bouncycastle-util: before 1.74-150200.3.21.1

bouncycastle-javadoc: before 1.74-150200.3.21.1

bouncycastle-mail: before 1.74-150200.3.21.1

bouncycastle-pg: before 1.74-150200.3.21.1

bouncycastle-tls: before 1.74-150200.3.21.1

bouncycastle-pkix: before 1.74-150200.3.21.1

bouncycastle: before 1.74-150200.3.21.1

CPE2.3

• cpe:2.3:o:suse:development_tools_module:15-SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:development_tools_module:15-SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_15:SP2:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_15:SP3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_15:SP2:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_15:SP3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_real_time_15:SP3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_real_time_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_15:SP2:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_desktop_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_15_sp3_ltss:15-SP3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_15_sp2_ltss:15-SP2:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_ltss_15:SP3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_espos_15:SP3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_15_sp2_ltss:15-SP2:*:*:*:*:*:*:*
• cpe:2.3:o:suse:opensuse_leap:15.4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_enterprise_storage:7.1:*:*:*:*:*:*:*
• 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:bouncycastle-jmail:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:bouncycastle-util:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:bouncycastle-javadoc:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:bouncycastle-mail:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:bouncycastle-pg:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:bouncycastle-tls:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:bouncycastle-pkix:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:bouncycastle:*:*:*:*:*:suse_linux:*:*

External links

https://www.suse.com/support/update/announcement/2023/suse-su-20232843-1/

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.