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HP Tru64 UNIX IPsec Tunnel ESP Mode Encrypted Data Disclosure
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Secunia Advisory:
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SA16401
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Release Date:
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2005-08-11
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Popularity:
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7,022 views
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Critical:
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Less critical
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Impact:
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Exposure of sensitive information
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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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| OS: | HP Tru64 UNIX 5.x
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| CVE reference: | CVE-2005-0039
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Description:
HP has acknowledged a vulnerability in HP Tru64 UNIX, which can be exploited by malicious people to disclose certain sensitive information.
The vulnerability is caused due to an error in the IPsec tunnel ESP mode implementation and can be exploited to disclose contents of an encrypted packet by modifying parts of the IPsec packet and causing the endpoint to reply with an ICMP error message containing portions of the packet in plain text.
Successful exploitation requires that IPsec is used in ESP tunnel mode without integrity protection (or integrity protection provided by a higher layer).
The vulnerability affects the following supported versions:
* HP Tru64 UNIX 5.1B-3
* HP Tru64 UNIX 5.1B-2/PK4
Solution:
Apply ERP kits.
HP Tru64 UNIX 5.1B-3:
http://www.itrc.hp.com/service/patch/...hid=T64KIT0026133-V51BB25-ES-20050801
MD5 checksum: b3b2031de3279c5243e8beee63dfe45b
HP Tru64 UNIX 5.1B-2/PK4:
http://www.itrc.hp.com/service/patch/...hid=T64KIT0026161-V51BB26-ES-20050804
MD5 checksum: 6c4f367937ddc0637e4faf341aab3514
Configure ESP to use both confidentiality and integrity protection.
Provided and/or discovered by:
NISCC
Original Advisory:
HP SSRT5957:
http://itrc.hp.com/service/cki/docDisplay.do?docId=HPSBTU01217
NISCC:
http://www.niscc.gov.uk/niscc/docs/al-20050509-00386.html
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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