SOFARPC up to 5.10.x expression language injection

Summaryinfo

A vulnerability marked as very critical has been reported in SOFARPC up to 5.10.x. This affects an unknown function. The manipulation leads to expression language injection. This vulnerability is documented as CVE-2023-41331. The attack can be initiated remotely. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in SOFARPC up to 5.10.x and classified as very critical. This issue affects an unknown code. The manipulation with an unknown input leads to a expression language injection vulnerability. Using CWE to declare the problem leads to CWE-917. The product constructs all or part of an expression language (EL) statement in a framework such as a Java Server Page (JSP) using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended EL statement before it is executed. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

SOFARPC is a Java RPC framework. Versions prior to 5.11.0 are vulnerable to remote command execution. Through a carefully crafted payload, an attacker can achieve JNDI injection or system command execution. In the default configuration of the SOFARPC framework, a blacklist is used to filter out dangerous classes encountered during the deserialization process. However, the blacklist is not comprehensive, and an actor can exploit certain native JDK classes and common third-party packages to construct gadget chains capable of achieving JNDI injection or system command execution attacks. Version 5.11.0 contains a fix for this issue. As a workaround, users can add `-Drpc_serialize_blacklist_override=javax.sound.sampled.AudioFileFormat` to the blacklist.

The weakness was released 09/13/2023 as GHSA-chv2-7hxj-2j86. The advisory is shared at github.com. The identification of this vulnerability is CVE-2023-41331 since 08/28/2023. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 09/13/2023).

Upgrading to version 5.11.0 eliminates this vulnerability. The upgrade is hosted for download at github.com.

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Productinfo

Name

• SOFARPC

Version

• 5.0
• 5.1
• 5.2
• 5.3
• 5.4
• 5.5
• 5.6
• 5.7
• 5.8
• 5.9
• 5.10

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

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