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XFree Weak Session Cookies
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Secunia Advisory:
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SA9757
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Release Date:
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2003-09-17
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Popularity:
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7,016 views
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Critical:
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Less critical
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Impact:
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System access
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Where:
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From local network
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Solution Status:
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Vendor Patch
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| Software: | XFree86 4.3.x
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| CVE reference: | CVE-2003-0692
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Description:
A vulnerability has been identified XFree possibly allowing malicious people to brute force session cookies.
The algorithm which generates the 128 bit session cookies is weak, potentially allowing malicious people to brute force the session cookie. This could potentially be exploited by malicious people on the local network to gain system access.
Solution:
This has been fixed in 4.3.99.13 development snapshot. Secunia does not recommend the use of development edition except when strictly necessary.
Secunia recommend that you restrict access to X so that only trusted IP adresses can connect.
Provided and/or discovered by:
George Lebl
Original Advisory:
http://www.xfree86.org/security/
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About this Secunia Advisory
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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.
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