CVE-2023-33201

bouncycastle: potential blind LDAP injection attack using a self-signed certificate

Severity Score

5.3

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

Bouncy Castle For Java before 1.74 is affected by an LDAP injection vulnerability. The vulnerability only affects 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 flaw was found in Bouncy Castle 1.73. This issue targets the fix of LDAP wild cards. Before the fix there was no validation for the X.500 name of any certificate, subject, or issuer, so the presence of a wild card may lead to information disclosure. This could allow a malicious user to obtain unauthorized information via blind LDAP Injection, exploring the environment and enumerating data. The exploit depends on the structure of the target LDAP directory as well as what kind of errors are exposed to the user.

Red Hat JBoss Enterprise Application Platform 7 is a platform for Java applications based on the WildFly application runtime. This release of Red Hat JBoss Enterprise Application Platform 7.4.13 serves as a replacement for Red Hat JBoss Enterprise Application Platform 7.4.12 and includes bug fixes and enhancements. See the Red Hat JBoss Enterprise Application Platform 7.4.13 Release Notes for information about the most significant bug fixes and enhancements included in this release. Issues addressed include denial of service and deserialization vulnerabilities.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2023-05-18 CVE Reserved
2023-06-30 CVE Published
2024-12-04 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
CWE-295: Improper Certificate Validation

CAPEC

References (7)

URL	Tag	Source
https://bouncycastle.org	Product
https://lists.debian.org/debian-lts-announce/2023/08/msg00000.html	Mailing List
https://security.netapp.com/advisory/ntap-20230824-0008

URL	Date	SRC

URL	Date	SRC
https://github.com/bcgit/bc-java/commit/e8c409a8389c815ea3fda5e8b94c92fdfe583bcc	2023-08-24

URL	Date	SRC
https://github.com/bcgit/bc-java/wiki/CVE-2023-33201	2023-08-24
https://access.redhat.com/security/cve/CVE-2023-33201	2024-05-30
https://bugzilla.redhat.com/show_bug.cgi?id=2215465	2024-05-30

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Bouncycastle Search vendor "Bouncycastle"		Bc-java Search vendor "Bouncycastle" for product "Bc-java"				< 1.74 Search vendor "Bouncycastle" for product "Bc-java" and version " < 1.74"		-		Affected