Foundry Multipass: Improper Control of Dynamically-Managed Code Resources
CVE-2022-27889 is a critical-severity improper control of dynamically-managed code resources vulnerability in Foundry Multipass from Palantir, 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 3.647.0 as the first without the flaw, so updating Foundry Multipass to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.98% chance of exploitation within 30 days, higher than 63% of scored CVEs.
Critical severity: a successful attack would have severe impact.
What to do
- Update Foundry Multipass to 3.647.0 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
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Palantir | Foundry Multipass | before 3.647.0 | 3.647.0 |
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
- NoneNo data is disclosed.
- 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:N/I:H/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 5.3 | Medium | CNA (palantir.com) |
| CVSS 3.1 | 9.1 | Critical | NVD |
| CVSS 2.0 | 6.4 | Medium | NVD |
Official description
The Multipass service was found to have code paths that could be abused to cause a denial of service for authentication or authorization operations. A malicious attacker could perform an application-level denial of service attack, potentially causing authentication and/or authorization operations to fail for the duration of the attack. This could lead to performance degradation or login failures for customer Palantir Foundry environments. This vulnerability is resolved in Multipass 3.647.0. This issue affects: Palantir Foundry Multipass versions prior to 3.647.0.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Control of Dynamically-Managed Code Resources
The product does not properly restrict reading from or writing to dynamically-managed code resources such as variables, objects, classes, attributes, functions, or executable instructions or statements.
How developers prevent this class of flaw
- For any externally-influenced input, check the input against an allowlist of acceptable values.
- Refactor the code so that it does not need to be dynamically managed.
More Improper Control of Dynamically-Managed Code Resources vulnerabilities (CWE-913)
Timeline
- CVE record published.
- Record last changed materially (score, affected products, status or references).
References
Advisories
- github.com/palantir/security-bulletins/blob/main/PLTRSEC-2022-02.mdThird Party Advisory
Recent Improper Control of Dynamically-Managed Code Resources vulnerabilities
- 7.8 High severity
Spotted an error? Tell us.