Vulnerability Details

Neon Certificate Spoofing and Denial of Service Vulnerability

Published: 2009-08-27 11:43:20
CVE Author: NIST National Vulnerability Database

CVSS Base Vector:
AV:N/AC:M/Au:N/C:P/I:P/A:P

Detection Type:
Executable Unreliable

Impact:
Attacker may leverage this issue to conduct man-in-the-middle attacks to spoof arbitrary SSL servers, and can deny the service by memory or CPU consumption on the affected application.

Affected Versions:
WebDAV, Neon version prior to 0.28.6 on Linux.

Technical Details:
- When OpenSSL is used, neon does not properly handle a '&qt?&qt' character in a domain name in the 'subject&qts' Common Name (CN) field of an X.509 certificate via a crafted certificate issued by a legitimate Certification Authority. - When expat is used, neon does not properly detect recursion during entity expansion via a crafted XML document containing a large number of nested entity references.

Recommendations:
Upgrade to version 0.28.6 or later.

Summary:
This host has Neon installed and is prone to Certificate Spoofing and Denial of Service vulnerability.

Solution Type:
Vendor Patch

NIST (National Institute of Standards and Technology) NVD (National Vulnerability Database)

https://nvd.nist.gov/vuln/detail/CVE-2009-2473
https://nvd.nist.gov/vuln/detail/CVE-2009-2474

CVE Analysis

https://www.mageni.net/cve/CVE-2009-2473
https://www.mageni.net/cve/CVE-2009-2474

SecurityFocus Bugtraq ID:

https://www.securityfocus.com/bid/36080
https://www.securityfocus.com/bid/36079

References:

http://secunia.com/advisories/36371
http://xforce.iss.net/xforce/xfdb/52633
http://www.vupen.com/english/advisories/2009/2341

Severity
Medium
CVSS Score
6.8
Published
2009-08-27
Modified
2019-04-29
Category
Denial of Service

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