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Vulnerabilities

CVE-2023-0386

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Detection and validation

Mapped metadata availability only. These signals do not change priority.

  • Sigma

    CobaltStrike Service Installations - System. Level: critical. Status: test.

    Open Sigma metadata

  • Atomic

    Do reconnaissance for files that have the setgid bit set. Executor: sh. Elevation: not reported.

    Open Atomic metadata

  • Nuclei

    Not mapped by tracked sources.

  • Metasploit

    exploit/linux/local/cve_2023_0386_overlayfs_priv_esc. Rank: Excellent.

    Open Metasploit metadata

What it is

Reported

Linux Kernel contains an improper ownership management vulnerability, where unauthorized access to the execution of the setuid file with capabilities was found in the Linux kernel’s OverlayFS subsystem in how a user copies a capable file from a nosuid mount into another mount. This uid mapping bug allows a local user to escalate their privileges on the system.

Source reported · Source: NVD · Source last published: · Source description excerpt; complete tracked detail loads below. · Source last updated: · Tracker data as of:

What is affected

Reported

Linux; Kernel. Product-level identification only; no affected-version conclusion is available from this field.

Source reported · Source: NVD · Source last published: · Source last updated: · Tracker data as of:

Urgency and basis

Reported

Act · 461.0

Tracker computed · Tracker decision tier from the evidence detailed below · Source last updated: · Tracker data as of:

Exploitation evidence

Reported

Active exploitation · CISA KEV · VulnCheck KEV · ENISA exploited-vulnerability catalog

Source reported · Active since: · CISA KEV added: · VulnCheck KEV added: · ENISA added: · Source last updated: · Tracker data as of:

What to do

Reported

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Source remediation ↗

Source reported · Tracked source remediation field · Source last updated: · Tracker data as of:

Evidence detail

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Glossary

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