Directory Traversal in IronWebMail

2006.10.17
Risk: Low
Local: No
Remote: Yes
CWE: CWE-Other


CVSS Base Score: 5/10
Impact Subscore: 2.9/10
Exploitability Subscore: 10/10
Exploit range: Remote
Attack complexity: Low
Authentication: No required
Confidentiality impact: Partial
Integrity impact: None
Availability impact: None

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Symantec Vulnerability Research http://www.symantec.com/research Security Advisory Advisory ID: SYMSA-2006-010 Advisory Title: Directory Traversal in IronWebMail Author: Derek Callaway Release Date: 16-10-2006 Application: IronWebMail(tm) Platform: IronMail appliance, FreeBSD 4.10 / IA-32 Severity: Remotely exploitable/ database credential retrieval Vendor status: Verified by vendor. Resolved in IronMail 6.1.1 HotFix-17 CVE Number: CVE-2006-5210 Reference: http://www.securityfocus.com/bid/20436 Overview: IronMail is an Internet e-mail security appliance marketed by CipherTrust, Inc. a company specializing in messaging security. IronMail's features include anti-spam mechanisms, zero day anti-virus protection, intrusion prevention techniques, and a Secure WebMail component. Secure WebMail implements Single Sign-On and integrates RSA SecurID; it operates in conjunction with the IronWebMail HTTPS server. Details: The web server under IronWebMail employes a simple macro language for evaluating pathname references. A loss of confidentiality occurs as a result of faulty pathname evaluation, causing unauthenticated access violation. After a connection to TCP port 443 has been accepted and an SSL session has been negotiated, a specially crafted HTTP GET request is sent. An exploit request contains the IM_FILE identifier that can be gleaned from the HTML source of the main IronWebMail login page: GET /IM_FILE(.) HTTP/1.0[CRLF][CRLF] [Current Working Directory Data Received From Web Server..] A request for the current working directory was made using custom IronWebMail server pathname syntax. The returned response payload is the byte-wise representation of the web root directory. This is the base case; other directories can be viewed as well as file contents. For example: GET /IM_FILE(%252e%252e/%252e%252e/%252e%252e) HTTP/1.0[CRLF][CRLF] [Directory Data for Great-Grandparent of CWD..] This request will display the contents of the ufs directory three-levels up from the current working directory of the web server process. Although literal pathnames can be provided, doubly encoding the file location with URI ASCII escaping allows for deeper directory traversals. This technique can be used to retrieve any file or directory accessible by the web server process. An attacker with novice programming skills is capable of writing a script to automate remote file system reconnaissance by taking advantage of this issue. Vendor Response: The above vulnerability is fixed and applicable to the following versions: - - - -IronMail 6.1.1 HotFix-17 Please download this HotFix to patch the specified Version. - - - -IronMail 5.0.1 Please Upgrade your device to Version 6.1.1 and install the appropriate HotFix to resolve this issue. Customers who have prior versions of IronMail are requested to upgrade to 6.1.1 version. Please visit Support Center on this issue or follow the following link: https://supportcenter.ciphertrust.com/vulnerability/IWM501-01.html Please note that this applies to only customers that have IronWebMail Enabled under the specified versions. Recommendation: Upgrade to IronMail 6.1.1 HotFix-17 to address this issue. Common Vulnerabilities and Exposures (CVE) Information: The Common Vulnerabilities and Exposures (CVE) project has assigned the following names to these issues. These are candidates for inclusion in the CVE list (http://cve.mitre.org), which standardizes names for security problems. CVE-2006-5210 Requested - - - -------Symantec Vulnerability Research Advisory Information------- For questions about this advisory, or to report an error: research (at) symantec (dot) com [email concealed] For details on Symantec's Vulnerability Reporting Policy: http://www.symantec.com/research/Symantec-Responsible-Disclosure.pdf Symantec Vulnerability Research Advisory Archive: http://www.symantec.com/research/ Symantec Vulnerability Research GPG Key: http://www.symantec.com/research/Symantec_Vulnerability_Research_GPG.asc - - - -------------Symantec Product Advisory Information------------- To Report a Security Vulnerability in a Symantec Product: secure (at) symantec (dot) com [email concealed] For general information on Symantec's Product Vulnerability reporting and response: http://www.symantec.com/security/ Symantec Product Advisory Archive: http://www.symantec.com/avcenter/security/SymantecAdvisories.html Symantec Product Advisory PGP Key: http://www.symantec.com/security/Symantec-Vulnerability-Management-Key.a sc - - - --------------------------------------------------------------- Copyright (c) 2006 by Symantec Corp. Permission to redistribute this alert electronically is granted as long as it is not edited in any way unless authorized by Symantec Consulting Services. Reprinting the whole or part of this alert in any medium other than electronically requires permission from cs_advisories (at) symantec (dot) com. [email concealed] Disclaimer The information in the advisory is believed to be accurate at the time of publishing based on currently available information. Use of the information constitutes acceptance for use in an AS IS condition. There are no warranties with regard to this information. Neither the author nor the publisher accepts any liability for any direct, indirect, or consequential loss or damage arising from use of, or reliance on, this information. Symantec, Symantec products, and Symantec Consulting Services are registered trademarks of Symantec Corp. and/or affiliated companies in the United States and other countries. All other registered and unregistered trademarks represented in this document are the sole property of their respective companies/owners. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2.2 (GNU/Linux) iD8DBQFFL/8Muk7IIFI45IARAoV4AJwIuLq3SNw4qQ+Y+tydi2XQK+Wq+QCZAe8X e0Mbm3+ua5PdURAmS1quM5A= =dON4 -----END PGP SIGNATURE-----


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