Remote code execution via Hessian filter bypass
Published Jun 19, 2023 · Updated Aug 2, 2024
Insecure deserialization in Solon before 2.3.3 allows remote attackers to execute arbitrary code through a crafted Hessian request. The sofa-hessian path accepts attacker-controlled Hessian data whose class-filtering protection can be bypassed, allowing a gadget object graph to invoke operating-system commands. Exploitation requires a Solon RPC endpoint that accepts Hessian HTTP bodies and a usable gadget class; the published proof uses UnixPrintServiceLookup on a Unix-like host.
Summary
What happened
Insecure deserialization in Solon before 2.3.3 allows remote attackers to execute arbitrary code through a crafted Hessian request. The sofa-hessian path accepts attacker-controlled Hessian data whose class-filtering protection can be bypassed, allowing a gadget object graph to invoke operating-system commands. Exploitation requires a Solon RPC endpoint that accepts Hessian HTTP bodies and a usable gadget class; the published proof uses UnixPrintServiceLookup on a Unix-like host.
The record
- CVE
- CVE-2023-35839
- Published
- Jun 19, 2023
- Updated
- Aug 2, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-502, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jun 19, 2023CVE publishedPublication date reported by the CVE source.
- Aug 2, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Hessian RCE proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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