plane: Server-Side Request Forgery
CVE-2024-31461 is a critical-severity server-side request forgery vulnerability in plane from Makeplane, with a CVSS 3.1 base score of 9.1 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. The record lists version 0.17-dev as the first without the flaw, so updating plane to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.67% chance of exploitation within 30 days, higher than 52% of scored CVEs.
Critical severity: a successful attack would have severe impact.
What to do
- Update plane to 0.17-dev or a later version.
- Read the advisory on github.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.
Affected products and versions
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
- HighData or code can be modified at will.
- Availability
- NoneAvailability is not affected.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N. Scored by CNA (github.com).
Official description
Plane, an open-source project management tool, has a Server-Side Request Forgery (SSRF) vulnerability in versions prior to 0.17-dev. This issue may allow an attacker to send arbitrary requests from the server hosting the application, potentially leading to unauthorized access to internal systems. The impact of this vulnerability includes, but is not limited to, unauthorized access to internal services accessible from the server, potential leakage of sensitive information from internal services, manipulation of internal systems by interacting with internal APIs. Version 0.17-dev contains a patch for this issue. Those who are unable to update immediately may mitigate the issue by restricting outgoing network connections from servers hosting the application to essential services only and/or implementing strict input validation on URLs or parameters that are used to generate server-side requests.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Server-Side Request Forgery
The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.
How developers prevent this class of flaw
- If there is a known list of applications, IP, hostname, and/or domains to which the product is allowed to communicate, then use allowlists to ensure that outgoing requests are restricted to these known entities. The allowlists could be in the application code or possibly enforced by firewalls or network segmentation.
- If the product is expected to be able to connect to arbitrary IP addresses or domains, consider using a denylist that includes private network addresses, internal domain names, etc. The denylist could be in the application code or possibly enforced by firewalls or network segmentation.
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
Patches and release notes
Other references
Other vulnerabilities in plane
- 8.1 High severity
- 8.5 High severity
- 9.8 Critical severity
- 9.1 Critical severity
- 9.8 Critical severity
- 9.1 Critical severity
Recent Server-Side Request Forgery vulnerabilities
- 7.2 High severity
- 7.3 High severity
- 7.2 High severity
- 7.3 High severity
- 9.1 Critical severity
- 8.6 High severity
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