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Webmin / Usermin PAM Authentication Bypass Vulnerability
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Secunia Advisory:
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SA16858
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Release Date:
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2005-09-20
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Last Update:
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2005-09-23
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Critical:
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Moderately critical
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Impact:
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Security Bypass
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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: | Usermin 1.x
Webmin 1.x
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| | CVE reference: | CVE-2005-3042 (Secunia mirror)
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Description:
Keigo Yamazaki has reported a vulnerability in Webmin and Usermin, which can be exploited by malicious people to bypass certain security restrictions.
The vulnerability is caused due to an input validation error in the authentication process in "miniserv.pl". This can be exploited to access Webmin or Usermin without providing a valid username and password.
Successful exploitation requires that full PAM conversations has been enabled via the Authentication page (not default setting).
The vulnerability has been reported in Webmin versions prior to 1.230 and Usermin versions prior to 1.160.
Solution:
Usermin:
Update to version 1.160.
http://www.webmin.com/udownload.html
Webmin:
Update to version 1.230.
http://www.webmin.com/download.html
Provided and/or discovered by:
Keigo Yamazaki, Little eArth Corporation.
Changelog:
2005-09-21: Keigo Yamazaki released details. Updated "Description" section and added link to original advisory.
2005-09-23: Added CVE reference.
Original Advisory:
http://www.lac.co.jp/business/sns/intelligence/SNSadvisory/83.html
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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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13 Related Secunia Security Advisories, displaying 10
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1. Webmin / Usermin "search" Cross-Site Scripting
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2. Webmin Unspecified Command Execution Vulnerability
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3. Webmin / Usermin "pam_login.cgi" Cross-Site Scripting
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4. Webmin / Usermin chooser.cgi Script Insertion Vulnerability
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5. Usermin "shell" Denial of Service Vulnerability
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6. Webmin / Usermin Cross-Site Scripting and Source Code Disclosure
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7. Webmin / Usermin Arbitrary File Disclosure Vulnerability
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8. Webmin Directory Traversal Vulnerability
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9. Usermin "miniserv.pl" Perl Format String Vulnerability
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10. Webmin "miniserv.pl" Perl Format String Vulnerability
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