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FreeRADIUS Tagged Attribute Handling Vulnerabilities
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Secunia Advisory:
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SA10271
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Release Date:
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2003-11-21
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Popularity:
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9,530 views
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Critical:
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Highly critical
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Impact:
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DoS
System access
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| Software: | FreeRADIUS 0.x
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Secunia CVSS-2 Score:
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Available in Secunia business solutions 
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| Advisory Content (Page 1 of 3) | [ 1 ] [ 2 ] [ 3 ] | |
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Description:
Two vulnerabilities have been identified in FreeRADIUS, which can be exploited by malicious people to cause a DoS (Denial of Service) and potentially compromise a vulnerable system.
1) The vulnerability is caused due to a boundary error caused by mishandling of certain tagged RADIUS attributes (e.g. the "Tunnel-Password" attribute). This may cause a heap overflow, which can be exploited by sending malformed packets to the service.
Successful exploitation requires that the packets originate from an IP address listed as a RADIUS client.
2) It is possible to crash the service due to a NULL pointer dereference bug, which can be exploited by sending an "Access-Request" packet containing a "Tunnel-Password" attribute.
Change Page:
[ 1 ] [ 2 ] [ 3 ]
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