imartinez/privategpt: Improper Limitation of a Pathname to a Restricted Directory
CVE-2024-3403 is a high-severity improper limitation of a pathname to a restricted directory vulnerability in imartinez/privategpt from Imartinez, 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 imartinez/privategpt 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 1.1% chance of exploitation within 30 days, higher than 66% of scored CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update Privategpt to 0.6.0 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 |
|---|---|---|---|
| Imartinez | imartinez/privategpt | latest and earlier | Not stated |
| Zylon-ai | private-gpt | 0.2.0 | Not stated |
| Pribai | Privategpt | 0.2.0 up to, but not including, 0.6.0 | 0.6.0 |
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
imartinez/privategpt version 0.2.0 is vulnerable to a local file inclusion vulnerability that allows attackers to read arbitrary files from the filesystem. By manipulating file upload functionality to ingest arbitrary local files, attackers can exploit the 'Search in Docs' feature or query the AI to retrieve or disclose the contents of any file on the system. This vulnerability could lead to various impacts, including but not limited to remote code execution by obtaining private SSH keys, unauthorized access to private files, source code disclosure facilitating further attacks, and exposure of configuration files.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Limitation of a Pathname to a Restricted Directory
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
How developers prevent this class of flaw
- For any security checks that are performed on the client side, ensure that these checks are duplicated on the server side, in order to avoid CWE-602. Attackers can bypass the client-side checks by modifying values after the checks have been performed, or by changing the client to remove the client-side checks entirely. Then, these modified values would be submitted to the server.
- Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
- Use an application firewall that can detect attacks against this weakness. It can be beneficial in cases in which the code cannot be fixed (because it is controlled by a third party), as an emergency prevention measure while more comprehensive software assurance measures are applied, or to provide defense in depth.
More Improper Limitation of a Pathname to a Restricted Directory vulnerabilities (CWE-22)
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/7431d1dd-f014-4d4f-acb6-f97369ef3688Exploit, Third Party Advisory
Other vulnerabilities in imartinez/privategpt
- 7.5 High severity
- 7.5 High severity
- 9.8 Critical severity
- 7.2 High severity
Recent Improper Limitation of a Pathname to a Restricted Directory vulnerabilities
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- 8.0 High severity
- 7.8 High severity
- 7.5 High severity
- 7.8 High severity
- 9.8 Critical severity
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