|
Fcron Multiple Vulnerabilities
|
|
Secunia Advisory:
|
SA13209
|
|
|
Release Date:
|
2004-11-16
|
|
Popularity:
|
6,069 views
|
|
|
Critical:
|
Less critical
|
|
Impact:
|
Security Bypass
Exposure of system information
Exposure of sensitive information
|
|
Where:
|
Local system
|
|
Solution Status:
|
Vendor Patch
|
|
| Software: | Fcron 2.x
|
|
|
Secunia CVSS-2 Score:
|
Available in Secunia business solutions 
|
|
|
Subscribe:
|
Instant alerts on relevant vulnerabilities
|
|
| Advisory Content (Page 1 of 3) | [ 1 ] [ 2 ] [ 3 ] | |
|
Description:
Karol Wiesek has reported four vulnerabilities in Fcron, which can be exploited by malicious, local users to gain knowledge of sensitive information, bypass access restrictions, and delete arbitrary files.
1) A design error in the fcronsighup utility, which runs setuid root, can be exploited to read the content of arbitrary files on the system by passing them as a command line argument.
2) A design error in the fcronsighup utility can be exploited to bypass access restrictions by passing e.g. "/proc/self/cmdline" or "/proc/self/environ" as command line argument. This makes it possible for the user to supply arbitrary configuration settings.
3) An input validation error in the fcronsighup utility can be exploited to delete arbitrary files by setting a specially crafted value for fcrontabs in a configuration file.
4) An error causes the file descriptors for "/etc/fcron.allow" and "/etc/fcron.deny" to leak, which can be exploited to read the content of these files.
The vulnerabilities have been reported in versions 2.0.1 and 2.9.4. Prior versions may also be affected.
Change Page:
[ 1 ] [ 2 ] [ 3 ]
|
|
|
Track this Secunia Advisory
|
Customers of the Secunia Vulnerability Intelligence solutions will automatically receive updates when new information regarding this advisory is released.
Read more about our Vulnerability Intelligence solutions and what they can do for you and your company.
|
|
|
About this Secunia Advisory
|
Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
|
