Arbitrary file write via archive path traversal
Published Mar 1, 2021 · Updated Aug 3, 2024
Path traversal in Spring Integration Zip Extension before 1.0.4 allows remote attackers to write files outside the extraction directory. The unzip transformer concatenates an archive entry's traversal-bearing filename with the target directory, allowing the resolved path to escape that directory. Exploitation requires an application to use the unzip transformer and unpack archives from untrusted sources; the resulting write is limited by process permissions.
Summary
What happened
Path traversal in Spring Integration Zip Extension before 1.0.4 allows remote attackers to write files outside the extraction directory. The unzip transformer concatenates an archive entry's traversal-bearing filename with the target directory, allowing the resolved path to escape that directory. Exploitation requires an application to use the unzip transformer and unpack archives from untrusted sources; the resulting write is limited by process permissions.
The record
- CVE
- CVE-2021-22114
- Published
- Mar 1, 2021
- Updated
- Aug 3, 2024
- Vendor
- Spring
- Product
- Spring Integration Zip Extension
- Classifications
- CWE-22, CAPEC-126
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Mar 1, 2021CVE publishedPublication date reported by the CVE source.
- Aug 3, 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?
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- Affected versionversion=spring-integration-zip versions prior to 1.0.4
What conditions does exploitation require?
What is affected?
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
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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