parisneo/lollms-webui: Path Traversal: '..filename'
CVE-2024-6394 is a high-severity path traversal: '..filename' vulnerability in parisneo/lollms-webui from ParisNeo, with a CVSS 3.0 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 parisneo/lollms-webui versions: latest 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 0.6% 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
- Update lollms-webui to 9.8 or a later version.
- 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 |
|---|---|---|---|
| Parisneo | parisneo/lollms-webui | latest and earlier | Not stated |
| Parisneo | lollms-webui | before 9.8 | 9.8 |
| Lollms | Lollms Web UI | 9.8 | 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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. Scored by CNA (huntr.dev).
Official description
A Local File Inclusion vulnerability exists in parisneo/lollms-webui versions below v9.8. The vulnerability is due to unverified path concatenation in the `serve_js` function in `app.py`, which allows attackers to perform path traversal attacks. This can lead to unauthorized access to arbitrary files on the server, potentially exposing sensitive information such as private SSH keys, configuration files, and source code.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Path Traversal: '..filename'
The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize '..filename' (leading backslash dot dot) sequences that can resolve to a location that is outside of that directory.
How developers prevent this class of flaw
- Inputs should be decoded and canonicalized to the application's current internal representation before being validated (CWE-180). Make sure that the application does not decode the same input twice (CWE-174). Such errors could be used to bypass allowlist validation schemes by introducing dangerous inputs after they have been checked.
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: poc, automatable: yes, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Technical write-ups (may include proof of concept)
- huntr.com/bounties/6df4f990-b632-4791-b3ea-f40c9ea905bfExploit, Issue Tracking, Third Party Advisory
Other vulnerabilities in parisneo/lollms-webui
- 9.6 Critical severity
- 7.5 High severity
- 8.8 High severity
- 8.4 High severity
- 9.8 Critical severity
- 9.1 Critical severity
Recent Path Traversal: '..filename' vulnerabilities
- 9.8 Critical severity
- 9.1 Critical severity
- 7.3 High severity
- 9.8 Critical severity
- 7.2 High severity
- 7.5 High severity
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