ID

VAR-200905-0075

CVE

CVE-2009-1161

TITLE

CiscoWorks Common Services TFTP Server Directory Traversal Vulnerability

DESCRIPTION

Directory traversal vulnerability in the TFTP service in Cisco CiscoWorks Common Services (CWCS) 3.0.x through 3.2.x on Windows, as used in Cisco Unified Service Monitor, Security Manager, TelePresence Readiness Assessment Manager, Unified Operations Manager, Unified Provisioning Manager, and other products, allows remote attackers to access arbitrary files via unspecified vectors. Multiple products provided by Cisco Systems contain a directory traversal vulnerablility. Multiple Cisco Systems products are vulnerable to directory traversal due to an issue in CiscoWorks Common Services. Jun Okada of NTT DATA SECURITY CORPORATION reported this vulnerability to IPA. JPCERT/CC coordinated with the vendor under Information Security Early Warning Partnership.A remote attacker could view or alter files on the target server. CiscoWorks Common Services TFTP Server is prone to a directory-traversal vulnerability because it fails to sufficiently sanitize user-supplied input. Exploiting this issue can allow an attacker to upload and download arbitrary files outside of the TFTP server root directory. This may result in a denial-of-service condition or lead to a complete compromise of the affected computer. This issue is tracked by Cisco Bug ID CSCsx07107. Cisco has released free software updates that address this vulnerability. A workaround that mitigates this vulnerability is available. This advisory is posted at http://www.cisco.com/warp/public/707/cisco-sa-20090520-cw.shtml. The TFTP service is enabled by default. To verify that the TFTP service is running connect to the CiscoWorks interface and choose "Start > Settings > Control Panel > Administrative Tools > Services" to access the "Services" window. The name of the service is "CWCS tftp service". No other Cisco products are currently known to be affected by this vulnerability. CiscoWorks is a family of products based on Internet standards for managing networks and devices. Vulnerability Scoring Details +---------------------------- Cisco has provided scores for the vulnerability in this advisory based on the Common Vulnerability Scoring System (CVSS). The CVSS scoring in this Security Advisory is done in accordance with CVSS version 2.0. CVSS is a standards-based scoring method that conveys vulnerability severity and helps determine urgency and priority of response. Cisco has provided a base and temporal score. Customers can then compute environmental scores to assist in determining the impact of the vulnerability in individual networks. Cisco has provided an FAQ to answer additional questions regarding CVSS at: http://www.cisco.com/web/about/security/intelligence/cvss-qandas.html Cisco has also provided a CVSS calculator to help compute the environmental impact for individual networks at: http://intellishield.cisco.com/security/alertmanager/cvss * CSM: TFTP service allows directory traversal (CSCsx07107) CVSS Base Score - 10.0 Access Vector - Network Access Complexity - Low Authentication - None Confidentiality Impact - Complete Integrity Impact - Complete Availability Impact - Complete CVSS Temporal Score - 8.7 Exploitability - High Remediation Level - Official-Fix Report Confidence - Confirmed Impact ====== A successful exploitation of this vulnerability may allow an attacker unauthorized access to view or modify application and host operating system files. Software Versions and Fixes =========================== Cisco has released free software updates that address this vulnerability. Prior to deploying software, customers should consult their maintenance provider or check the software for feature set compatibility and known issues specific to their environment. This vulnerability has been corrected in the following CiscoWorks Common Services software patch: cwcs3.x-win-CSCsx07107-0.zip The CiscoWorks Common Services patch can be downloaded from the following link: http://www.cisco.com/pcgi-bin/tablebuild.pl/cw2000-cd-one When considering software upgrades, also consult http://www.cisco.com/go/psirt and any subsequent advisories to determine exposure and a complete upgrade solution. In all cases, customers should exercise caution to be certain the devices to be upgraded contain sufficient memory and that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, contact the Cisco Technical Assistance Center (TAC) or your contracted maintenance provider for assistance. Workarounds =========== To mitigate this vulnerability, administrators can disable TFTP services by completing the following steps: Step 1. Choose "Start > Settings > Control Panel > Administrative Tools > Services" to access the Services window. Step 2. Right-click "CWCS tftp service" and select "Properties". Step 3. Set the "Startup Type" to "Disabled". Step 4. Click the "Stop" button to stop the TFTP service. Note: Disabling TFTP services may impact the functionality of some of the CiscoWorks components. Additional mitigations that can be deployed on Cisco devices within the network are available in the Cisco Applied Mitigation Bulletin companion document for this advisory, which is available at the following link: http://www.cisco.com/warp/public/707/cisco-amb-20090520-cw.shtml. Obtaining Fixed Software ======================== Cisco has released free software updates that address this vulnerability. Prior to deploying software, customers should consult their maintenance provider or check the software for feature set compatibility and known issues specific to their environment. Customers may only install and expect support for the feature sets they have purchased. By installing, downloading, accessing or otherwise using such software upgrades, customers agree to be bound by the terms of Cisco's software license terms found at http://www.cisco.com/en/US/docs/general/warranty/English/EU1KEN_.html, or as otherwise set forth at Cisco.com Downloads at http://www.cisco.com/public/sw-center/sw-usingswc.shtml. Do not contact psirt@cisco.com or security-alert@cisco.com for software upgrades. Customers with Service Contracts +------------------------------- Customers with contracts should obtain upgraded software through their regular update channels. For most customers, this means that upgrades should be obtained through the Software Center on Cisco's worldwide website at http://www.cisco.com. Customers using Third Party Support Organizations +------------------------------------------------ Customers whose Cisco products are provided or maintained through prior or existing agreements with third-party support organizations, such as Cisco Partners, authorized resellers, or service providers should contact that support organization for guidance and assistance with the appropriate course of action in regards to this advisory. The effectiveness of any workaround or fix is dependent on specific customer situations, such as product mix, network topology, traffic behavior, and organizational mission. Due to the variety of affected products and releases, customers should consult with their service provider or support organization to ensure any applied workaround or fix is the most appropriate for use in the intended network before it is deployed. Customers without Service Contracts +---------------------------------- Customers who purchase direct from Cisco but do not hold a Cisco service contract, and customers who purchase through third-party vendors but are unsuccessful in obtaining fixed software through their point of sale should acquire upgrades by contacting the Cisco Technical Assistance Center (TAC). TAC contacts are as follows. * +1 800 553 2447 (toll free from within North America) * +1 408 526 7209 (toll call from anywhere in the world) * e-mail: tac@cisco.com Customers should have their product serial number available and be prepared to give the URL of this notice as evidence of entitlement to a free upgrade. Free upgrades for non-contract customers must be requested through the TAC. Refer to http://www.cisco.com/en/US/support/tsd_cisco_worldwide_contacts.html for additional TAC contact information, including localized telephone numbers, and instructions and e-mail addresses for use in various languages. Exploitation and Public Announcements ===================================== The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability described in this advisory. This vulnerability was found during the resolution of customer service requests. Status of this Notice: FINAL ============================ THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME. A stand-alone copy or Paraphrase of the text of this document that omits the distribution URL in the following section is an uncontrolled copy, and may lack important information or contain factual errors. Distribution ============ This advisory is posted on Cisco's worldwide website at: http://www.cisco.com/warp/public/707/cisco-sa-20090520-cw.shtml In addition to worldwide web posting, a text version of this notice is clear-signed with the Cisco PSIRT PGP key and is posted to the following e-mail and Usenet news recipients. * cust-security-announce@cisco.com * first-bulletins@lists.first.org * bugtraq@securityfocus.com * vulnwatch@vulnwatch.org * cisco@spot.colorado.edu * cisco-nsp@puck.nether.net * full-disclosure@lists.grok.org.uk * comp.dcom.sys.cisco@newsgate.cisco.com Future updates of this advisory, if any, will be placed on Cisco's worldwide website, but may or may not be actively announced on mailing lists or newsgroups. Users concerned about this problem are encouraged to check the above URL for any updates. Revision History ================ +------------------------------------------------------------+ | Revision 1.0 | 2009-May-20 | Initial public release | +------------------------------------------------------------+ Cisco Security Procedures ========================= Complete information on reporting security vulnerabilities in Cisco products, obtaining assistance with security incidents, and registering to receive security information from Cisco, is available on Cisco's worldwide website at http://www.cisco.com/en/US/products/products_security_vulnerability_policy.html. This includes instructions for press inquiries regarding Cisco security notices. All Cisco security advisories are available at http://www.cisco.com/go/psirt. +-------------------------------------------------------------------- Copyright 2008-2009 Cisco Systems, Inc. All rights reserved. +-------------------------------------------------------------------- Updated: May 20, 2009 Document ID: 110143 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) iEYEARECAAYFAkoUF9wACgkQ86n/Gc8U/uD6vwCfR19hcS8fBuvDrshKYSc9zbsM Yp8AoJj60tLS7dMKkYcRcgJLreh3dl8A =yjnP -----END PGP SIGNATURE----- . ---------------------------------------------------------------------- Are you missing: SECUNIA ADVISORY ID: Critical: Impact: Where: within the advisory below? This is now part of the Secunia commercial solutions. Click here to learn more about our commercial solutions: http://secunia.com/advisories/business_solutions/ Click here to trial our solutions: http://secunia.com/advisories/try_vi/ ---------------------------------------------------------------------- TITLE: CiscoWorks TFTP Directory Traversal Vulnerability SECUNIA ADVISORY ID: SA35179 VERIFY ADVISORY: http://secunia.com/advisories/35179/ DESCRIPTION: A vulnerability has been reported in various Cisco products, which can be exploited by malicious people to disclose sensitive information or compromise a vulnerable system. http://www.cisco.com/pcgi-bin/tablebuild.pl/cw2000-cd-one PROVIDED AND/OR DISCOVERED BY: Reported to the vendor by a customer. ORIGINAL ADVISORY: http://www.cisco.com/warp/public/707/cisco-sa-20090520-cw.shtml http://www.cisco.com/warp/public/707/cisco-amb-20090520-cw.shtml ---------------------------------------------------------------------- About: This Advisory was delivered by Secunia as a free service to help everybody keeping their systems up to date against the latest vulnerabilities. Subscribe: http://secunia.com/advisories/secunia_security_advisories/ Definitions: (Criticality, Where etc.) http://secunia.com/advisories/about_secunia_advisories/ Please Note: Secunia recommends that you verify all advisories you receive by clicking the link. Secunia NEVER sends attached files with advisories. Secunia does not advise people to install third party patches, only use those supplied by the vendor

AFFECTED PRODUCTS

CVSS

PROBLEMTYPE DATA

THREAT TYPE

remote

TYPE

path traversal

CONFIGURATIONS

EXPLOIT AVAILABILITY

PATCH

EXTERNAL IDS

REFERENCES

CREDITS

Cisco

SOURCES

LAST UPDATE DATE

2024-11-23T22:31:53.798000+00:00

SOURCES UPDATE DATE

SOURCES RELEASE DATE