21 May 2014
Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2014.0786 Symantec Workspace Streaming XMLRPC Unauthenticated Access 21 May 2014 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Symantec Workspace Streaming Publisher: Symantec Operating System: Windows Impact/Access: Unauthorised Access -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2014-1649 Original Bulletin: http://www.symantec.com/security_response/securityupdates/detail.jsp?fid=security_advisory&pvid=security_advisory&year=&suid=20140512_00 - --------------------------BEGIN INCLUDED TEXT-------------------- Security Advisories Relating to Symantec Products - Symantec Workspace Streaming XMLRPC Unauthenticated Access SYM14-009 May 12, 2014 Revisions None Severity CVSS2 Impact Exploitability CVSS2 Vector Base Score SWS Unauthenticated XMLRPC Access - High 7.9 10 5.5 AV:A/AC:M/AU:N/C:C/I:C/A:C Overview The management server for Symantec Workspace Streaming (SWS) does not properly handle external XMLRPC requests, which could potentially allow unauthorized access to restricted server-side data and server functionality. A remote user could potential create a backdoor on the targeted server resulting in unauthorized privilege access. Affected Products Product Version Build Solution(s) Symantec Workspace 7.5.x and All Update to SWS 126.96.36.1999 ( 7.5 SP1) Streaming prior Details Symantec Workspace Streaming server does not properly handle incoming HTTPS XMLRPC requests. This could potentially allow a malicious individual unauthorized access to sensitive server-side files and functionality. By submitting a sufficiently crafted XMLRPC request, a malicious user could place arbitrary code on the server that, if successfully crafted would create an unauthorized access point on the server. This could potentially provide the malicious individual application-level access to the SWS server. In a normal installation, a Symantec Workspace Streaming Server should not be accessible externally from the network environment which should limit this to an authorized but unprivileged network user attempt. However, an external attacker able to successfully leverage network access by enticing an authorized user to visit a malicious site or click on a malicious HTML email could possibly further leverage that access to attempt to exploit this issue. Symantec Response Symantec product engineers have released SWS 7.5SP1 to resolve this issue. Symantec engineers reviewed and continue to review all product functionality to further enhance the overall security of Symantec Workspace Streaming. Symantec recommends customers apply the available update as soon as possible to avoid this type of issue. Symantec is not aware of exploitation of or adverse customer impact from this issue. Update Information Symantec Workspace Steaming 7.5SP1 is available through Symantec File Connect. Mitigations Symantec Security Response has released IPS signature 27339 - Ã¢Â€ÂœSymantec Workspace Streaming XMLRPC RCE" to help detect and block remote exploit attempts. Signatures are available through normal Symantec security updates. Best Practices As part of normal best practices, Symantec strongly recommends the following: Restrict access to administrative or management systems to authorized privileged users. Restrict remote access, if required, to trusted/authorized systems only. Run under the principle of least privilege where possible to limit the impact of potential exploit. Keep all operating systems and applications current with vendor patches. Follow a multi-layered approach to security. At a minimum, run both firewall and anti-malware applications to provide multiple points of detection and protection to both inbound and outbound threats. Deploy network- and host-based intrusion detection systems to monitor network traffic for signs of anomalous or suspicious activity. This may aid in the detection of attacks or malicious activity related to the exploitation of latent vulnerabilities. Credit Symantec thanks Andrea Micalizzi (rgod) working through HPÃ¢Â€Â™s Zero Day Initiative(ZDI) for reporting this and ZDI for working with us as we addressed it. References BID: Security Focus, http://www.securityfocus.com, has assigned Bugtraq IDs (BIDs) to these issues for inclusion in the Security Focus vulnerability database. CVE: These issues are candidates for inclusion in the CVE list (http://cve.mitre.org), which standardizes names for security problems. CVE BID Description CVE-2014-1649 BID 67189 Symantec Workspace Unauthenticated XMLRPC Access Symantec takes the security and proper functionality of our products very seriously. As founding members of the Organization for Internet Safety (OISafety), Symantec supports and follows responsible disclosure guidelines. Please contact email@example.com if you feel you have discovered a security issue in a Symantec product. A member of the Symantec Product Security team will contact you regarding your submission to coordinate any required response. Symantec strongly recommends using encrypted email for reporting vulnerability information to firstname.lastname@example.org. The Symantec Product Security PGP key can be found at the location below. Symantec has developed a Product Vulnerability Response document outlining the process we follow in addressing suspected vulnerabilities in our products. This document is available below. Symantec Vulnerability Response Policy Symantec Product Vulnerability Management PGP Key Symantec Product Vulnerability Management PGP Key Copyright (c) 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 Product Security. 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All other registered and unregistered trademarks represented in this document are the sole property of their respective companies/owners. * Signature names may have been updated to comply with an updated IPS Signature naming convention. See http://www.symantec.com/business/support/index?page=content&id=TECH152794&key=54619&actp=LIST for more information. Last modified on: May 12, 2014 - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to email@example.com and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. 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