Password disclosure via fixed-key TEA encryption
Published Mar 18, 2022 · Updated Apr 16, 2025
Hard-coded key use in Rockwell Automation ISaGRAF Runtime 4.x and 5.x allows man-in-the-middle attackers to decrypt passwords. The IXL password flow encrypts eight-byte target passwords with TEA and preset symmetric keys, allowing captured authentication data to be reversed. Network access to TCP 1131 and an intercepted user authentication exchange are required; disclosure is limited to the target password.
Summary
What happened
Hard-coded key use in Rockwell Automation ISaGRAF Runtime 4.x and 5.x allows man-in-the-middle attackers to decrypt passwords. The IXL password flow encrypts eight-byte target passwords with TEA and preset symmetric keys, allowing captured authentication data to be reversed. Network access to TCP 1131 and an intercepted user authentication exchange are required; disclosure is limited to the target password.
The record
- CVE
- CVE-2020-25180
- Published
- Mar 18, 2022
- Updated
- Apr 16, 2025
- Vendor
- Rockwell Automation
- Product
- ISaGRAF Runtime
- Classifications
- CWE-321, T1557
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Mar 18, 2022CVE publishedPublication date reported by the CVE source.
- Apr 16, 2025Record 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=4.x
- Affected versionversion=5.x
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.
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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