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6.5
CVE-2023-27169: Xpand IT Write-back manager v2.3.1 creates predictable license keys
CVE-2023-27169 · published 3 years ago
Summary
The Write-back manager version 2.3.1 uses a fixed secret value when creating license keys, making those keys easy to guess. This could let someone produce or validate fake licenses and use the software without permission. Apply the vendor's update or reconfigure the product to use a unique, random secret for each installation.
What to do
The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.
Affected software
| Vendor | Product | Affected versions |
|---|---|---|
| xpand-it | write-back_manager |
2.3.1 cpe:2.3:a:xpand-it:write-back_manager:2.3.1:*:*:*:*:*:*:* |
Original advisory text
Xpand IT Write-back manager v2.3.1 uses a hardcoded salt in license class configuration which leads to the generation of a hardcoded and predictable symmetric encryption keys for license generation...
Xpand IT Write-back manager v2.3.1 uses a hardcoded salt in license class configuration which leads to the generation of a hardcoded and predictable symmetric encryption keys for license generation and validation.
References
- https://ghostline.neocities.org/CVE-2023-27169/
- https://balwurk.com Not Applicable
- https://balwurk.com/cve-use-of-hard-coded-cryptographic-key/ Third Party Advisory
- https://writeback4t.com Product
- https://www.xpand-it.com Product
Internet-facing
14 days
Internal
60 days
- Not known to be exploited
- Can be exploited automatically
- Gives an attacker partial control
Severity
6.5
Medium
Type
CWE-798Use of Hard-coded Credentials
Timeline
Published12 Sep 2023
Updated4 Nov 2026
First seen16 Sep 2026
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