THREATPORT/VULNERABILITY/CVE-2009-4146
HIGH SEVERITY

CVE-2009-4146

Freebsd vulnerability

CVSS
7.2
EPSS
3.9%
EPSS pct
89th
Exploited
No known
The _rtld function in the Run-Time Link-Editor (rtld) in libexec/rtld-elf/rtld.c in FreeBSD 7.1, 7.2, and 8.0 does not clear the LD_PRELOAD environment variable, which allows local users to gain privileges by executing a setuid or setguid program with a modified LD_PRELOAD variable containing an untrusted search path that points to a Trojan horse library, a different vector than CVE-2009-4147.
Affected vendor
Freebsd
Affected product
Freebsd
CVSS vector
AV:L/AC:L/Au:N/C:C/I:C/A:C
Weakness type (CWE)
  • CWE-264 — Permissions, Privileges, and Access Controls
Published
2009-12-02

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable with local access, low 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 3.9% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 89% of all scored CVEs.

Check your external exposure to CVE-2009-4146

  • Confirm whether Freebsd Freebsd is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2009-4146.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2009-4146

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2009-4146 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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