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AUSCERT External Security Bulletin Redistribution
ESB-2012.1095
Novell File Reporter contains multiple vulnerabilities
19 November 2012
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AusCERT Security Bulletin Summary
---------------------------------
Product: Novell File Reporter
Publisher: US-CERT
Operating System: Windows
SUSE
Netware
Impact/Access: Administrator Compromise -- Remote/Unauthenticated
Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Create Arbitrary Files -- Remote/Unauthenticated
Access Confidential Data -- Remote/Unauthenticated
Resolution: Mitigation
CVE Names: CVE-2012-4959 CVE-2012-4958 CVE-2012-4957
CVE-2012-4956
Original Bulletin:
http://www.kb.cert.org/vuls/id/273371
Comment: Proof of concept is publicly available for this vulnerability and
there is no known fix. This US-CERT bulletin contains a suggested
workaround. In addition, NFRAgent.exe uses port 3037/TCP therefore
blocking this port on the Enterprise border is recommended.
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Vulnerability Note VU#273371
Novell File Reporter contains multiple vulnerabilities
Original Release date: 16 Nov 2012 | Last revised: 16 Nov 2012
Overview
Novell File Reporter 1.0.2 contains multiple vulnerabilities including a heap
overflow, arbitrary file retrieval, and arbitrary file upload.
Description
The Rapid7 advisory states:
CVE-2012-4956 - Heap Overflow
When handling requests of name "SRS", the NFRAgent.exe fails to generate a
response in a secure way, copying user controlled data into a fixed-length
buffer in the heap without bounds checking. This vulnerability can result in
remote code execution under the context of the SYSTEM account.
CVE-2012-4957 - Arbitrary File Retrieval
When handling requests on "/FSF/CMD" for records with NAME "SRS", OPERATION "4"
and CMD "103" the NFRAgent.exe allows a remote unauthenticated user to retrieve
arbitrary remote files, specified with the tag "PATH", with SYSTEM privileges.
CVE-2012-4958 - Arbitrary File Retrieval
When handling requests on "/FSF/CMD" for records with NAME "FSFUI" and UICMD
"126" the NFRAgent.exe allows a remote unauthenticated user to retrieve
arbitrary remote text files, specified with the tag "FILE", with SYSTEM
privileges.
CVE-2012-4959 - Arbitrary File Upload
When handling requests on "/FSF/CMD" for records with NAME "FSFUI" and UICMD
"130" the NFRAgent.exe allows a remote unauthenticated user to upload files to
the host, specified with the tag "FILE", with SYSTEM privileges. It allows to
execute remote code with SYSTEM privileges.
Additional details may be found in the Rapid7 blog post entitled "New 0day
Exploits: Novell File Reporter Vulnerabilities".
Impact
A remote unauthenticated attacker may be able to execute code, retrieve
arbitrary files, and upload arbitrary files to the host.
Solution
We are currently unaware of a practical solution to this problem. Please
consider the following workaround.
Restrict Access
Deploy appropriate firewall rules so only trusted networks and hosts can
communicate with the Novell File Reporter agent.
Vendor Information (Learn More)
Vendor Status Date Notified Date Updated
Novell, Inc. Affected - 16 Nov 2012
If you are a vendor and your product is affected, let us know.
CVSS Metrics (Learn More)
Group Score Vector
Base 7.8 AV:N/AC:M/Au:N/C:C/I:P/A:N
Temporal 7.4 E:H/RL:W/RC:C
Environmental 5.6 CDP:ND/TD:M/CR:ND/IR:ND/AR:ND
References
https://community.rapid7.com/community/metasploit/blog/2012/11/16/nfr-agent-buffer-vulnerabilites-cve-2012-4959
Credit
Thanks to Juan Vazquez for reporting this vulnerability.
This document was written by Jared Allar.
Other Information
CVE IDs: CVE-2012-4956 CVE-2012-4957 CVE-2012-4958 CVE-2012-4959
Date Public: 16 Nov 2012
Date First Published: 16 Nov 2012
Date Last Updated: 16 Nov 2012
Document Revision: 14
Feedback
If you have feedback, comments, or additional information about this
vulnerability, please send us email.
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