Psg-5124 Firmware: Origin Validation Error
CVE-2023-29711 is a critical-severity origin validation error vulnerability in Psg-5124 Firmware from Interlink, with a CVSS 3.1 base score of 9.8 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. Affected Psg-5124 Firmware versions: 1.0.4. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 70.3% chance of exploitation within 30 days, which is in the top 0.6% of all scored CVEs.
Exploitation in the next 30 days is more likely than not, according to EPSS.
What to do
- Check which version of Psg-5124 Firmware 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 |
|---|---|---|---|
| Interlink | Psg-5124 Firmware | 1.0.4 | Not stated |
Version data comes from NVD's product matching. 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
- HighData or code can be modified at will.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 9.8 | Critical | NVD |
| CVSS 3.1 | 9.8 | Critical | CISA (ADP) |
Official description
An incorrect access control issue was discovered in Interlink PSG-5124 version 1.0.4, allows attackers to execute arbitrary code via crafted GET request.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Origin Validation Error
The product does not properly verify that the source of data or communication is valid.
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: yes, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Technical write-ups (may include proof of concept)
- github.com/shellpei/LINK-Unauthorized/blob/main/CVE-2023-29711Exploit, Third Party Advisory
- holistic-height-e6d.notion.site/LINK-PSG-5124-Switch-remote-command-vulnerability-da4fd8fb450d42879b07ef3a953…Exploit, Third Party Advisory
Recent Origin Validation Error vulnerabilities
- 9.8 Critical severity
- 8.8 High severity
- 7.1 High severity
- 8.8 High severity
- 7.5 High severity
- 9.8 Critical severity
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