Internal web response disclosure via snippet URI traversal
Published Apr 30, 2021 · Updated Aug 4, 2024
Server-side request forgery in the OX App Suite 7.10.4 and earlier backend allows remote authenticated users to read internal web responses. A user-defined snippet identifier is reused as a cache retrieval URI without URI encoding after local cache eviction, allowing traversal outside the valid URI. Exploitation requires a valid account and cache-expiry timing; only internal GET services without authentication expose responses.
Summary
What happened
Server-side request forgery in the OX App Suite 7.10.4 and earlier backend allows remote authenticated users to read internal web responses. A user-defined snippet identifier is reused as a cache retrieval URI without URI encoding after local cache eviction, allowing traversal outside the valid URI. Exploitation requires a valid account and cache-expiry timing; only internal GET services without authentication expose responses.
The record
- CVE
- CVE-2020-28943
- Published
- Apr 30, 2021
- Updated
- Aug 4, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-918, T1190
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Apr 30, 2021CVE publishedPublication date reported by the CVE source.
- Aug 4, 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
- Open-Xchange snippet SSRF reproduction stepsproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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