CVE-2023-44483
Information Exposure vulnerability in xmlsec (Maven)
What is CVE-2023-44483 About?
This vulnerability in Apache Santuario - XML Security for Java allows for private key disclosure in log files under certain conditions. When debug logging is enabled during XML Signature generation, sensitive private key information can be inadvertently exposed. Exploitation requires debug logging to be active and specific API usage, making it an information leakage risk.
Affected Software
- org.apache.santuario:xmlsec
- >3.0.0, <3.0.3
- >2.3.0, <2.3.4
- <2.2.6
Technical Details
All versions of Apache Santuario - XML Security for Java prior to 2.2.6, 2.3.4, and 3.0.3 are vulnerable when utilizing the JSR 105 API for generating XML Signatures. The flaw occurs when debug-level logging is enabled in the application's logging configuration. During the process of generating an XML Signature, the API inadvertently logs sensitive private key material to the log files. This leakage happens because the private key, or components thereof, are included in verbose debug messages, allowing an attacker who gains access to these log files to obtain the private key.
What is the Impact of CVE-2023-44483?
Successful exploitation may allow attackers to obtain sensitive information, specifically private cryptographic keys, leading to potential impersonation, unauthorized signing of documents, or decryption of sensitive communications.
What is the Exploitability of CVE-2023-44483?
The exploitation of this vulnerability is specific and dependent on configuration. It requires the application using Apache Santuario - XML Security for Java to have debug-level logging enabled. An attacker would then need local or remote access to the application's log files. There are no direct authentication or privilege requirements against the XML Security library itself to trigger the logging, but access to the log files might require specific permissions or system access. The vulnerability is a passive information leakage. The primary risk factor is verbose logging in production environments, especially when logs are not properly secured or rotated, or if an attacker can achieve a prior foothold to access server logs.
What are the Known Public Exploits?
| PoC Author | Link | Commentary |
|---|---|---|
| No known exploits | ||
What are the Available Fixes for CVE-2023-44483?
About the Fix from Resolved Security
The patch removes debug log statements that print private key information during signature operations, preventing sensitive key material from being exposed in logs. This fixes CVE-2023-44483 by mitigating the risk of leaking private keys, which could otherwise lead to compromise of cryptographic credentials if log files are accessed by unauthorized parties.
Available Upgrade Options
- org.apache.santuario:xmlsec
- <2.2.6 → Upgrade to 2.2.6
- org.apache.santuario:xmlsec
- >2.3.0, <2.3.4 → Upgrade to 2.3.4
- org.apache.santuario:xmlsec
- >3.0.0, <3.0.3 → Upgrade to 3.0.3
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Book a demoAdditional Resources
- http://www.openwall.com/lists/oss-security/2023/10/20/5
- https://github.com/apache/santuario-java
- https://lists.apache.org/thread/vmqbp9mfxtrf0kmbnnmbn3h9j6dr9q55
- https://osv.dev/vulnerability/GHSA-xfrj-6vvc-3xm2
- https://nvd.nist.gov/vuln/detail/CVE-2023-44483
- https://lists.apache.org/thread/vmqbp9mfxtrf0kmbnnmbn3h9j6dr9q55
- http://www.openwall.com/lists/oss-security/2023/10/20/5
- https://santuario.apache.org/secadv.data/CVE-2023-44483.txt.asc?version=1&modificationDate=1697782758000&api=v2
What are Similar Vulnerabilities to CVE-2023-44483?
Similar Vulnerabilities: CVE-2022-21448 , CVE-2021-43283 , CVE-2023-29472 , CVE-2022-23438 , CVE-2021-36371
