SEL-5030 acSELerator QuickSet Software: Incomplete Filtering of Special Elements
CVE-2023-31172 is a high-severity incomplete filtering of special elements vulnerability in SEL-5030 acSELerator QuickSet Software from Schweitzer Engineering Laboratories, with a CVSS 3.1 base score of 7.4 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, but only if a user takes part, for example by opening a link or file. Affected SEL-5030 acSELerator QuickSet Software versions: 7.1.3.0 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 0.35% 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 SEL-5030 acSELerator QuickSet Software you run against the affected versions below, and install the vendor's latest release.
- Read the advisory on selinc.com for workarounds and exact fixed builds.
- Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
- Because the attack needs a user to take part, warn users about unexpected links and files related to this product until it is patched.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Schweitzer Engineering Laboratories | SEL-5030 acSELerator QuickSet Software | 7.1.3.0 and earlier | Not stated |
| Selinc | Sel-5030 Acselerator Quickset | 7.1.3.0 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
- RequiredA user must take an action such as opening a file or link.
- Scope
- ChangedThe attack can reach beyond the vulnerable component into other systems.
- Confidentiality
- NoneNo data is disclosed.
- Integrity
- HighData or code can be modified at will.
- Availability
- NoneAvailability is not affected.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 5.9 | Medium | CNA (selinc.com) |
| CVSS 3.1 | 7.4 | High | NVD |
Official description
An Incomplete Filtering of Special Elements vulnerability in the Schweitzer Engineering Laboratories SEL-5030 acSELerator QuickSet Software could allow an attacker to embed instructions that could be executed by an authorized device operator. See Instruction Manual Appendix A and Appendix E dated 20230615 for more details. This issue affects SEL-5030 acSELerator QuickSet Software: through 7.1.3.0.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Incomplete Filtering of Special Elements
The product receives data from an upstream component, but it does not completely filter special elements before sending it to a downstream component.
More Incomplete Filtering of Special Elements vulnerabilities (CWE-791)
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
- nozominetworks.com/blog/Third Party Advisory
Recent Incomplete Filtering of Special Elements vulnerabilities
- 8.6 High severity
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