Traffic disclosure via hardcoded XOR over HTTP
Published Feb 11, 2021 · Updated Jul 9, 2026
Insecure transport in Oclean Mobile Application 2.1.2 allows man-in-the-middle attackers to read app traffic over the network. The OcleanAPI TX/RX path sends payloads over HTTP and applies repeating XOR with a hardcoded 21-character key, so captured data can be decoded. Exploitation requires a network position permitting passive traffic capture; the documented consequence is disclosure of transmitted application data.
Summary
What happened
Insecure transport in Oclean Mobile Application 2.1.2 allows man-in-the-middle attackers to read app traffic over the network. The OcleanAPI TX/RX path sends payloads over HTTP and applies repeating XOR with a hardcoded 21-character key, so captured data can be decoded. Exploitation requires a network position permitting passive traffic capture; the documented consequence is disclosure of transmitted application data.
The record
- CVE
- CVE-2020-25493
- Published
- Feb 11, 2021
- Updated
- Jul 9, 2026
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-327, CWE-798, T1040
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Feb 11, 2021CVE publishedPublication date reported by the CVE source.
- Jul 9, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
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
- decrypt-oclean-trafficfunctional · demonstrated
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Technologies
Your stack
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Your stack
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