MODULYS GP: Weak Encoding for Password
CVE-2023-0356 is a high-severity weak encoding for password vulnerability in MODULYS GP from Socomec, with a CVSS 3.1 base score of 7.5 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. Affected MODULYS GP versions: 7.20 and earlier. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.48% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Check which version of MODULYS GP you run against the affected versions below, and install the vendor's latest release.
- Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| SOCOMEC | MODULYS GP | 7.20 and earlier | Not stated |
| Socomec | Net Vision | 7.20 and earlier | Not stated |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- NoneNo account or login is needed.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- NoneNothing can be modified.
- Availability
- NoneAvailability is not affected.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 5.7 | Medium | CNA (hq.dhs.gov) |
| CVSS 3.1 | 7.5 | High | NVD |
Official description
SOCOMEC MODULYS GP Netvision versions 7.20 and prior lack strong encryption for credentials on HTTP connections, which could result in threat actors obtaining sensitive information.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Weak Encoding for Password
The product uses a weak or trivial encoding for a password.
How developers prevent this class of flaw
- Passwords should be encrypted with keys that are at least 128 bits in length for adequate security.
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Third-party and government advisories
- cisa.gov/uscert/ics/advisories/icsa-23-024-02Third Party Advisory, US Government Resource
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