Deserialization in Apache Shardingsphere
CVE-2023-28754
Deserialization of Untrusted Data vulnerability in Apache ShardingSphere-Agent, which allows attackers to execute arbitrary code by constructing a special YAML configuration file. The attacker needs to have permission to modify the ShardingSphere Agent YAML configuration file on the target machine, and the target machine can access the URL with the arbitrary code JAR. An attacker can use SnakeYAML to deserialize java.net.URLClassLoader and make it load a JAR from a specified URL, and then deserialize javax.script.ScriptEngineManager to load code using that ClassLoader. When the ShardingSphere JVM process starts and uses the ShardingSphere-Agent, the arbitrary code specified by the attacker will be executed during the deserialization of the YAML configuration file by the Agent. This issue affects ShardingSphere-Agent: through 5.3.2. This vulnerability is fixed in Apache ShardingSphere 5.4.0.
Vulnerability class: Insecure Deserialization
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.015 (72.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 72nd percentile — 72.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.015 · newest: 0.015 · change: 0.000
Affected products
Weakness classification (CWE)
References
- lists.apache.org/thread/p8onhqox5kkwow9lc6gs03z28wtyp1cg (vendor-advisory, Mailing List)
- www.openwall.com/lists/oss-security/2023/07/19/3 (Mailing List)
Frequently asked questions
- What is CVE-2023-28754?
- CVE-2023-28754 is a high-severity vulnerability in Apache Shardingsphere, classified under Deserialization of Untrusted Data. CVSS score: 8.8/10. Published 2023-07-19.
- How severe is CVE-2023-28754?
- High severity. CVSS v3 base score is 8.8 out of 10.