CVE-2023-51518: james Insecure Deserialization — Fix

Description

Apache James prior to version 3.7.5 and 3.8.0 exposes a JMX endpoint on localhost subject to pre-authentication deserialisation of untrusted data. Given a deserialisation gadjet, this could be leveraged as part of an exploit chain that could result in privilege escalation. Note that by default JMX endpoint is only bound locally. We recommend users to: - Upgrade to a non-vulnerable Apache James version - Run Apache James isolated from other processes (docker - dedicated virtual machine) - If possible turn off JMX

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CVSS v3.1 Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-502 Deserialization of Untrusted Data

Affected Products

Vendor	Product	Versions
apache	james	All
apache	james	All

References

Advisories & Patches

https://lists.apache.org/thread/wbdm61ch6l0kzjn6nnfmyqlng82qz0or https://lists.apache.org/thread/wbdm61ch6l0kzjn6nnfmyqlng82qz0or

Frequently Asked Questions

What is CVE-2023-51518? +

Apache James prior to version 3.7.5 and 3.8.0 exposes a JMX endpoint on localhost subject to pre-authentication deserialisation of untrusted data. Given a deserialisation gadjet, this could be leveraged as part of an exploit chain that could result in privilege escalation. Note that by default JMX endpoint is only bound locally. We recommend users to: - Upgrade to a non-vulnerable Apache James version - Run Apache James isolated from other processes (docker - dedicated virtual machine) - If possible turn off JMX It has a CVSS v3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2023-51518? +

CVE-2023-51518 has a CVSS v3.1 score of 9.8 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately.

What products are affected by CVE-2023-51518? +

CVE-2023-51518 affects products from apache, specifically: james. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2023-51518? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2023-51518