Security Resilience

CVE-2023-22834

Access Control in Palantir Contour ≤ 9.642.0

Published
27 June 2023
Modified
21 November 2024
Patch / advisory
CVSS Score v3.1 2.7
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L
EPSS Score 0.0035 27th percentile
Risk Priority 25 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2023-22834 is a low-severity Forced Browsing (CWE-425) vulnerability in Palantir Contour. Its CVSS base score is 2.7 (Low).

Operationally, exploitation aligns with the MITRE ATT&CK technique Proc Filesystem (T1003.007); ranked at the 27th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

The Contour Service was not checking that users had permission to create an analysis for a given dataset. This could allow an attacker to clutter up Compass folders with extraneous analyses, that the attacker would otherwise not have permission to…

more

create.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise Techniques

T1003.007 Proc Filesystem Credential Access
Adversaries may gather credentials from the proc filesystem or `/proc`.
T1005 Data from Local System Collection
Adversaries may search local system sources, such as file systems, configuration files, local databases, virtual machine files, or process memory, to find files of interest and sensitive data prior to Exfiltration.
T1010 Application Window Discovery Discovery
Adversaries may attempt to get a listing of open application windows.
T1011.001 Exfiltration Over Bluetooth Exfiltration
Adversaries may attempt to exfiltrate data over Bluetooth rather than the command and control channel.
T1012 Query Registry Discovery
Adversaries may interact with the Windows Registry to gather information about the system, configuration, and installed software.
T1016 System Network Configuration Discovery Discovery
Adversaries may look for details about the network configuration and settings, such as IP and/or MAC addresses, of systems they access or through information discovery of remote systems.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2023-3426Shared CWE-425, CWE-862
CVE-2023-30948Same vendor: Palantir
CVE-2023-30969Same vendor: Palantir
CVE-2023-30950Same vendor: Palantir
CVE-2024-13719Shared CWE-862
CVE-2023-6504Shared CWE-862
CVE-2024-4351Shared CWE-862
CVE-2023-3869Shared CWE-862
CVE-2023-3998Shared CWE-862
CVE-2025-1667Shared CWE-862

Affected Assets

palantir
contour
≤ 9.642.0

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-862 CWE-425

Requiring a decision for every access request prevents missing authorization checks that would otherwise allow unauthorized access.

addresses: CWE-862 CWE-425

Always invoking the reference monitor prevents missing authorization checks for protected resources.

addresses: CWE-862 CWE-425

Requiring enforcement of authorizations ensures checks are performed rather than omitted for resources.

addresses: CWE-425 CWE-862

Decoy endpoints catch forced browsing and direct requests, deflecting attackers from legitimate resources while enabling analysis.

addresses: CWE-862 CWE-425

Prevents missing authorization checks for input operations by restricting the capability itself.

addresses: CWE-862

Requiring an access control policy ensures authorization checks are defined and applied for critical functions.

addresses: CWE-862

Reviews of access controls detect missing authorization checks on critical functions or resources.

addresses: CWE-862

Documenting permitted unauthenticated actions prevents missing authorization by making all exceptions explicit and subject to organizational review.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.AA-05 partial match
blocks

Directly requires policy-driven definition, enforcement, and review of authorizations on resources such as URLs.

PR.IR-01 partial match
blocks

Protects environments from unauthorized logical access, which includes preventing direct requests to restricted paths.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

removes
blocks

A.5.15 directly requires defining/implementing access control rules, authorization, need-to-know, and restrictions that enforce appropriate access on all URLs/resources, which stops forced browsing exploitation even if the flaw remains; remainder is bounded to non-authorization cases like path traversal or CSRF (per AC-3 anchor).

removes
removes
finds

By requiring competent outsiders to verify that every function enforces the need-to-know principle, the control lowers the likelihood that missing authorization checks persist undetected.

Hardening callouts derived

DISA STIG baselines are authored against specific weaknesses. Where this CVE cites a broad weakness class, the mapping is not asserted at that abstraction (owner ruling, 2026-09-25: grade only at Base and below), so no rule is shown here rather than a rule shown against the wrong grain.

  • No fine-grained STIG row for CWE-862, a class-level weakness, and none of its children carries one either.

References