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Vulnerability Details : CVE-2011-1739

The makemask function in mountd.c in mountd in FreeBSD 7.4 through 8.2 does not properly handle a -network field specifying a CIDR block with a prefix length that is not an integer multiple of 8, which allows remote attackers to bypass intended access restrictions in opportunistic circumstances via an NFS mount request.
Publish Date : 2011-05-03 Last Update Date : 2017-08-16
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- CVSS Scores & Vulnerability Types

CVSS Score
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact None (There is no impact to the availability of the system.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Bypass a restriction or similar

- Products Affected By CVE-2011-1739

# Product Type Vendor Product Version Update Edition Language
1 OS Freebsd Freebsd 7.4 Version Details Vulnerabilities
2 OS Freebsd Freebsd 8.0 Version Details Vulnerabilities
3 OS Freebsd Freebsd 8.1 Version Details Vulnerabilities
4 OS Freebsd Freebsd 8.2 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Freebsd Freebsd 4

- References For CVE-2011-1739
XF freebsd-mountd-security-bypass(66981)
SECTRACK 1025425
BID 47517 FreeBSD 'mountd' Incorrect Netmask Access Control List (ACL) Security Bypass Vulnerability Release Date:2011-04-20
VUPEN ADV-2011-1076

- Metasploit Modules Related To CVE-2011-1739

There are not any metasploit modules related to this CVE entry (Please visit for more information)

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