Service interruption via unbounded JWE decompression
Published Mar 6, 2024 · Updated Sep 9, 2024
Denial of service in Latchset JWCrypto before 1.5.6 allows remote authenticated users to exhaust server CPU and memory via compressed JWE tokens. The JWE decryption path passes DEF-compressed plaintext directly to zlib.decompress without first enforcing a compressed-data size limit. Reachability requires an application to decrypt attacker-controlled compressed JWE data; resource exhaustion interrupts the hosting service.
Summary
What happened
Denial of service in Latchset JWCrypto before 1.5.6 allows remote authenticated users to exhaust server CPU and memory via compressed JWE tokens. The JWE decryption path passes DEF-compressed plaintext directly to zlib.decompress without first enforcing a compressed-data size limit. Reachability requires an application to decrypt attacker-controlled compressed JWE data; resource exhaustion interrupts the hosting service.
The record
- CVE
- CVE-2024-28102
- Published
- Mar 6, 2024
- Updated
- Sep 9, 2024
- Vendor
- Latchset
- Product
- JWCrypto
- Classifications
- CWE-770, T1499.004
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Mar 6, 2024CVE publishedPublication date reported by the CVE source.
- Sep 9, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <1.5.6
- Affected versionversion=< 1.5.6
What conditions does exploitation require?
What is affected?
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
- Upstream compressed-JWE proof of conceptproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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