PT-2010-3640 · Freebsd · Freebsd

Argp + 1 · Published 2010-05-28 · Updated 2012-11-06 · CVE-2010-2020

Positive Technologies (AI Summary)

CVSS v2.0

6.9

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions FreeBSD versions 7.2 through 8.1-PRERELEASE

Description The issue concerns a lack of validation for the length of a certain fhsize parameter in the NFS client, specifically in the sys/nfsclient/nfs vfsops.c file. This allows local users to gain privileges via a crafted mount request when vfs.usermount is enabled.

Recommendations For FreeBSD versions 7.2 through 8.1-PRERELEASE, consider disabling the vfs.usermount option to minimize the risk of exploitation until a patch is available.

Exploit

Fix

RCE

Weakness Enumeration

CWE-20

Related Identifiers

CVE-2010-2020

Affected Products

Freebsd

References · 7

• 🔥 https://exploit-db.com/exploits/14003 · Exploit
• 🔥 http://exploit-db.com/exploits/14002 · Exploit
• 🔥 https://exploit-db.com/exploits/14002 · Exploit
• 🔥 http://exploit-db.com/exploits/14003 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2010-2020 · Security Note
• http://security.freebsd.org/advisories/FreeBSD-SA-10:06.nfsclient.asc · Vendor Advisory
• http://securitytracker.com/id?1024039 · Note