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Exploits
ID:4383 - Exploit for Permissions, Privileges, and Access Controls in FreeBSD - CVE-2013-2171
ID:4383 - Exploit for Permissions, Privileges, and Access Controls in FreeBSD - CVE-2013-2171
Published: August 11, 2020
Vulnerability identifier: #VU42758
Vulnerability risk: High
CVE-ID: CVE-2013-2171
CWE-ID: CWE-264
Exploitation vector: Remote access
Vulnerable software:
FreeBSD
FreeBSD
Link to public exploit:
Vulnerability description
The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
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.
Remediation
Install update from vendor's website.