22966 : QNX Neutrino RTOS fontsleuth Local Format String
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Info

Last Modified

about 1 year ago

Percent Complete

95%

Disclosure

Feb 07, 2006

Discovery

Dec 23, 2004

Dates

Exploit

Unknown

Solution

Unknown

Keywords

No Keywords

Description

QNX Neutrino RTOS contains a flaw that may allow a local user to gain privileges. The issue is due to the fontsleuth program not sanitizing user-supplied input to the zeroth argument. By passing format specifiers such as %n and %hn, it is possible to overwrite portions of memory to run code under high privileges.

Classification

Location: Local Access Required
Attack Type: Input Manipulation
Impact: Loss of Integrity
Exploit: Exploit Rumored / Private

Solution

Currently, there are no known upgrades or patches to correct this issue. It is possible to correct the flaw by implementing the following workaround: remove the SUID bit from the binary or restrict access via group/permission control

Products

QNX Software Systems

QNX Neutrino RTOS

6.3.0

References

Security Tracker: 1015599
Secunia Advisory ID: 18750
CVE ID: 2006-0618 (see also: NVD)
ISS X-Force ID: 24559
FrSIRT Advisory: ADV-2006-0474
Mail List Post: http://archives.neohapsis.com/archives/fulldisclosure/2006-02/0134.html
Other Advisory URL: http://www.idefense.com/intelligence/vulnerabilities/display.php?id=380
Vendor URL: http://www.qnx.com/products/rtos/

Credit

iDEFENSE - idlabs-advisoriesidefense.com - iDEFENSE

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