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CVE-2023-28754

CVE-2023-28754: Apache ShardingSphere-Agent Deserialization of Untrusted Data vulnerability

8.8

CVSS Score
3.1

Basic Information

CVE ID
CVE-2023-28754
GHSA ID
GHSA-3cxh-xp3g-jxjm
EPSS Score
0.46269%
CWE
CWE-502
Published
7/19/2023
Updated
11/7/2023
KEV Status
No
Technology
TechnologyJava

Technical Details

CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Package NameEcosystemVulnerable VersionsFirst Patched Version
org.apache.shardingsphere:shardingspheremaven<= 5.3.25.4.0

Vulnerability Intelligence
Miggo AIMiggo AI

Miggo AIRoot Cause Analysis

The vulnerability stems from unsafe YAML deserialization using SnakeYAML. The advisory explicitly mentions exploitation via deserializing java.net.URLClassLoader and javax.script.ScriptEngineManager, which implies the configuration loader uses generic deserialization (Yaml.load()) rather than type-restricted parsing. The AgentConfigurationLoader class is the logical component handling YAML configuration parsing in ShardingSphere-Agent, and versions ≤5.3.2 would lack the safe deserialization fixes implemented in 5.4.0. The confidence is high because the attack vector directly maps to YAML deserialization entry points in the agent's configuration loading mechanism.

Vulnerable functions

Only Mi**o us*rs **n s** t*is s**tion

WAF Protection Rules

WAF Rule

**s*ri*liz*tion o* Untrust** **t* vuln*r**ility in *p**** S**r*in*Sp**r*-***nt, w*i** *llows *tt**k*rs to *x**ut* *r*itr*ry *o** *y *onstru*tin* * sp**i*l Y*ML *on*i*ur*tion *il*. T** *tt**k*r n***s to **v* p*rmission to mo*i*y t** S**r*in*Sp**r* **

Reasoning

T** vuln*r**ility st*ms *rom uns*** Y*ML **s*ri*liz*tion usin* Sn*k*Y*ML. T** **visory *xpli*itly m*ntions *xploit*tion vi* **s*ri*lizin* j*v*.n*t.URL*l*ssLo***r *n* j*v*x.s*ript.S*ript*n*in*M*n***r, w*i** impli*s t** *on*i*ur*tion lo***r us*s **n*ri