cbcvebase.
CVE-2023-45849
published 2023-11-08

CVE-2023-45849: An arbitrary code execution which results in privilege escalation was discovered in Helix Core versions prior to 2023.2. Reported by Jason Geffner.

PriorityP183critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
ITWVulnCheck KEV
Exploited in the wild
EPSS
1.11%
61.9th percentile
An arbitrary code execution which results in privilege escalation was discovered in Helix Core versions prior to 2023.2. Reported by Jason Geffner.

Affected

6 ranges
VendorProductVersion rangeFixed in
helixhelix_core>= 0.0.0 < 2023.22023.2
helixhelix_core>= 0.0.0 < 2023.1 Patch 22023.1 Patch 2
helixhelix_core>= 0.0.0 < 2022.2 Patch 32022.2 Patch 3
helixhelix_core>= 0.0.0 < 2022.1 Patch 62022.1 Patch 6
helixhelix_core>= 0.0.0 < 2021.2 Patch 102021.2 Patch 10
perforcehelix_core< 2023.22023.2

Detection & IOCsextracted from sources · hover to see the quote

commanduser-bgtask RPC command
  • Monitor for unauthenticated invocations of the 'user-bgtask' RPC command against Perforce Helix Core Server, which can be used to execute arbitrary commands including PowerShell scripts as LocalSystem.
  • Alert on processes spawned by the Perforce Server process running as LocalSystem, especially PowerShell or cmd instances, which may indicate exploitation of CVE-2023-45849.
  • Log all access to the Perforce Server and set up crash alerts to detect potential exploitation attempts.
  • ·The vulnerability is exploitable in the default configuration of Perforce Server, which allows unauthenticated RPC access. Restricting access via VPN or IP allowlist mitigates exposure.
  • ·Helix Core versions prior to 2023.2 (fix version: 2023.1/2513900, released November 7, 2023) are vulnerable. Upgrade is required to remediate.

CVSS provenance

nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
vulncheck9.0CRITICAL
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