CVE-2023-33201: Bouncy Castle Bouncy Castle For Java LDAP Vulnerability
MODERATECVE-2023-33201 is a MODERATE (CVSS 5.3) bouncy castle for java ldap vulnerability (CWE-295: Improper Certificate Validation) affecting Bouncy Castle libraries in the Maven ecosystem. The issue involves bouncy castle for java ldap injection vulnerability. Remediation is available by upgrading affected packages to version 1.74.
CVE-2023-33201 at a Glance
Security Impact
CVSS: 5.3
The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N).
How to Fix CVE-2023-33201
To remediate this vulnerability, upgrade all affected Bouncy Castle dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.
<dependency>
<groupId>org.bouncycastle</groupId>
<artifactId>bcprov-jdk18on</artifactId>
<version>1.74</version>
</dependency>
<dependency>
<groupId>org.bouncycastle</groupId>
<artifactId>bcprov-jdk15to18</artifactId>
<version>1.74</version>
</dependency>
<dependency>
<groupId>org.bouncycastle</groupId>
<artifactId>bcprov-jdk14</artifactId>
<version>1.74</version>
</dependency>
<dependency>
<groupId>org.bouncycastle</groupId>
<artifactId>bcprov-ext-jdk14</artifactId>
<version>1.74</version>
</dependency>
<dependency>
<groupId>org.bouncycastle</groupId>
<artifactId>bcprov-ext-jdk15to18</artifactId>
<version>1.74</version>
</dependency>
<dependency>
<groupId>org.bouncycastle</groupId>
<artifactId>bcprov-ext-jdk18on</artifactId>
<version>1.74</version>
</dependency>
<dependency>
<groupId>org.bouncycastle</groupId>
<artifactId>bcprov-debug-jdk14</artifactId>
<version>1.74</version>
</dependency>
<dependency>
<groupId>org.bouncycastle</groupId>
<artifactId>bcprov-debug-jdk15to18</artifactId>
<version>1.74</version>
</dependency>
<dependency>
<groupId>org.bouncycastle</groupId>
<artifactId>bcprov-debug-jdk18on</artifactId>
<version>1.74</version>
</dependency>
<dependency>
<groupId>org.bouncycastle</groupId>
<artifactId>bcprov-jdk15on</artifactId>
<version>Latest secure release</version>
</dependency>
<dependency>
<groupId>org.bouncycastle</groupId>
<artifactId>bcprov-ext-jdk15on</artifactId>
<version>Latest secure release</version>
</dependency>
<dependency>
<groupId>org.bouncycastle</groupId>
<artifactId>bcprov-debug-jdk15on</artifactId>
<version>Latest secure release</version>
</dependency>
Run the following command in your project directory to verify that all resolved dependencies use the patched release:
mvn dependency:tree -Dincludes=org.bouncycastle
How to Check if You Are Affected
To determine whether your Java application is affected by CVE-2023-33201, inspect your build dependencies using the Maven Dependency Plugin:
mvn dependency:tree -Dincludes=org.bouncycastle
Analyze the terminal output to locate any version of Bouncy Castle in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.74), your application is affected.
Note: The mvn dependency:tree -Dincludes=org.bouncycastle command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.
Technical Details
Vulnerability Mechanism & Technical Analysis
This vulnerability is classified under CWE-295: Improper Certificate Validation, where the product does not validate, or incorrectly validates, a certificate. In Bouncy Castle, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.
Source Advisory Statement
CVE-2023-33201 Affected Bouncy Castle Versions
12 component(s)| Product / Package | Ecosystem | Affected Versions | Fixed Version |
|---|---|---|---|
|
org.bouncycastle:bcprov-jdk18on
|
Maven |
< 1.74
|
1.74
|
|
org.bouncycastle:bcprov-jdk15to18
|
Maven |
< 1.74
|
1.74
|
|
org.bouncycastle:bcprov-jdk14
|
Maven |
≥ 1.49
< 1.74
|
1.74
|
|
org.bouncycastle:bcprov-ext-jdk14
|
Maven |
≥ 1.49
< 1.74
|
1.74
|
|
org.bouncycastle:bcprov-ext-jdk15to18
|
Maven |
< 1.74
|
1.74
|
|
org.bouncycastle:bcprov-ext-jdk18on
|
Maven |
< 1.74
|
1.74
|
|
org.bouncycastle:bcprov-debug-jdk14
|
Maven |
≥ 1.49
< 1.74
|
1.74
|
|
org.bouncycastle:bcprov-debug-jdk15to18
|
Maven |
< 1.74
|
1.74
|
|
org.bouncycastle:bcprov-debug-jdk18on
|
Maven |
< 1.74
|
1.74
|
|
org.bouncycastle:bcprov-jdk15on
|
Maven |
≥ 1.49
≤ 1.70
|
|
|
org.bouncycastle:bcprov-ext-jdk15on
|
Maven |
≥ 1.49
≤ 1.70
|
|
|
org.bouncycastle:bcprov-debug-jdk15on
|
Maven |
≥ 1.49
≤ 1.70
|
|
References
Frequently Asked Questions
What is CVE-2023-33201?
Which Bouncy Castle versions are affected?
What version fixes CVE-2023-33201?
Is bcprov-jdk18on affected?
Is bcprov-jdk15to18 affected?
What is the CVSS score of CVE-2023-33201?
What CWE is associated with CVE-2023-33201?
How can I check Maven dependencies for CVE-2023-33201?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-hr8g-6v94-x4m9",
"modified" : "2023-09-05T16:57:42Z",
"published" : "2023-07-05T03:30:23Z",
"aliases" : [ "CVE-2023-33201" ],
"summary" : "Bouncy Castle For Java LDAP injection vulnerability",
"details" : "Bouncy Castle provides the `X509LDAPCertStoreSpi.java` class which can be used in conjunction with the CertPath API for validating certificate paths. Pre-1.73 the implementation did not check the X.500 name of any certificate, subject, or issuer being passed in for LDAP wild cards, meaning the presence of a wild car may lead to Information Disclosure.\n\nA potential attack would be to generate a self-signed certificate with a subject name that contains special characters, e.g: `CN=Subject*)(objectclass=`. This will be included into the filter and provides the attacker ability to specify additional attributes in the search query. This can be exploited as a blind LDAP injection: an attacker can enumerate valid attribute values using the boolean blind injection technique. The exploitation depends on the structure of the target LDAP directory, as well as what kind of errors are exposed to the user.\n\nChanges to the `X509LDAPCertStoreSpi.java` class add the additional checking of any X.500 name used to correctly escape wild card characters.",
"severity" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"
} ],
"affected" : [ {
"package" : {
"ecosystem" : "Maven",
"name" : "org.bouncycastle:bcprov-jdk18on"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "0"
}, {
"fixed" : "1.74"
} ]
} ]
}, {
"package" : {
"ecosystem" : "Maven",
"name" : "org.bouncycastle:bcprov-jdk15to18"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "0"
}, {
"fixed" : "1.74"
} ]
} ]
}, {
"package" : {
"ecosystem" : "Maven",
"name" : "org.bouncycastle:bcprov-jdk14"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "1.49"
}, {
"fixed" : "1.74"
} ]
} ]
}, {
"package" : {
"ecosystem" : "Maven",
"name" : "org.bouncycastle:bcprov-ext-jdk14"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "1.49"
}, {
"fixed" : "1.74"
} ]
} ]
}, {
"package" : {
"ecosystem" : "Maven",
"name" : "org.bouncycastle:bcprov-ext-jdk15to18"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "0"
}, {
"fixed" : "1.74"
} ]
} ]
}, {
"package" : {
"ecosystem" : "Maven",
"name" : "org.bouncycastle:bcprov-ext-jdk18on"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "0"
}, {
"fixed" : "1.74"
} ]
} ]
}, {
"package" : {
"ecosystem" : "Maven",
"name" : "org.bouncycastle:bcprov-debug-jdk14"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "1.49"
}, {
"fixed" : "1.74"
} ]
} ]
}, {
"package" : {
"ecosystem" : "Maven",
"name" : "org.bouncycastle:bcprov-debug-jdk15to18"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "0"
}, {
"fixed" : "1.74"
} ]
} ]
}, {
"package" : {
"ecosystem" : "Maven",
"name" : "org.bouncycastle:bcprov-debug-jdk18on"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "0"
}, {
"fixed" : "1.74"
} ]
} ]
}, {
"package" : {
"ecosystem" : "Maven",
"name" : "org.bouncycastle:bcprov-jdk15on"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "1.49"
}, {
"last_affected" : "1.70"
} ]
} ]
}, {
"package" : {
"ecosystem" : "Maven",
"name" : "org.bouncycastle:bcprov-ext-jdk15on"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "1.49"
}, {
"last_affected" : "1.70"
} ]
} ]
}, {
"package" : {
"ecosystem" : "Maven",
"name" : "org.bouncycastle:bcprov-debug-jdk15on"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "1.49"
}, {
"last_affected" : "1.70"
} ]
} ]
} ],
"references" : [ {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-33201"
}, {
"type" : "WEB",
"url" : "https://github.com/bcgit/bc-java/commit/ccf93ca736b89250ff4ce079a5aa56f5cbf0ebbd"
}, {
"type" : "WEB",
"url" : "https://github.com/bcgit/bc-java/commit/e8c409a8389c815ea3fda5e8b94c92fdfe583bcc"
}, {
"type" : "WEB",
"url" : "https://bouncycastle.org"
}, {
"type" : "WEB",
"url" : "https://bouncycastle.org/releasenotes.html#r1rv74"
}, {
"type" : "PACKAGE",
"url" : "https://github.com/bcgit/bc-java"
}, {
"type" : "WEB",
"url" : "https://github.com/bcgit/bc-java/commits/main/prov/src/main/java/org/bouncycastle/jce/provider/X509LDAPCertStoreSpi.java"
}, {
"type" : "WEB",
"url" : "https://github.com/bcgit/bc-java/wiki/CVE-2023-33201"
}, {
"type" : "WEB",
"url" : "https://lists.debian.org/debian-lts-announce/2023/08/msg00000.html"
}, {
"type" : "WEB",
"url" : "https://security.netapp.com/advisory/ntap-20230824-0008"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-295" ],
"severity" : "MODERATE",
"github_reviewed" : true,
"github_reviewed_at" : "2023-07-06T15:40:29Z",
"nvd_published_at" : "2023-07-05T03:15:09Z"
}
}