CVE-2013-2171

Freebsd vulnerability

CVSS

6.9

EPSS

6.9%

EPSS pct

93th

Exploited

No known

The vm_map_lookup function in sys/vm/vm_map.c in the mmap implementation in the kernel in FreeBSD 9.0 through 9.1-RELEASE-p4 does not properly determine whether a task should have write access to a memory location, which allows local users to bypass filesystem write permissions and consequently gain privileges via a crafted application that leverages read permissions, and makes mmap and ptrace system calls.

Affected vendor

Freebsd

Affected product

Freebsd

CVSS vector

AV:L/AC:M/Au:N/C:C/I:C/A:C

Weakness type (CWE)

CWE-264 — Permissions, Privileges, and Access Controls

Published

2013-07-02

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable with local access, medium attack complexity, requiring no authentication. Successful exploitation leads to complete impact to confidentiality, complete impact to integrity, complete impact to availability.

Its EPSS score of 6.9% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 93% of all scored CVEs.

Check your external exposure to CVE-2013-2171

Confirm whether Freebsd Freebsd is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2013-2171.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2013-2171

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2013-2171 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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