Initial Publication Date: Advisory Status: Advisory Severity: CVSS Base Score:Legacy ID
15 Jun 2012 Closed Medium 4.03 SYM12-009
Symantec LiveUpdate Administrator 2.3 and prior install some files with insecure file permissions during a default installation. These files allow full control permission to everyone which could result in arbitrary command execution with elevated privileges on the system.
Symantec LiveUpdate Administrator Windows version
2.3.1 and prior
Update to Symantec LiveUpdate Administrator Windows version 2.3.2
Additional Product Information
Symantec Live Update Administrator
Insecure File Permissions Local Elevation of Privilege - Medium
CVSS2 Base Score
Insecure File Permissions
Exploit Publicly Available: Yes, Proof of Concept
Details Symantec was notified of insecure file permissions following a default installation of Symantec LiveUpdate Administrator. Permissions on the installed files allow full control to 'Everyone'. An authorized but non-privileged user or an unauthorized user with access to an account on the local system hosting Symantec LiveUpdate Administrator could potentially leverage these improper permissions to read arbitrary system files with elevated privileges. There is also a potential for the unauthorized local user to successfully overwrite arbitrary files or create scripts that execute with SYSTEM privileges. Successful exploitation could result in an unauthorized local user executing arbitrary commands with privileged access on the system.
Symantec Response Symantec engineers confirmed the issue and addressed it initially in Symantec LiveUpdate Administrator 2.3.1. Symantec LiveUpdate Administrator 2.3.1 was originally made available to customers through support channels.
There were public reports suggesting that Symantec LiveUpdate Administrator 2.3.1 did NOT fully address all areas of the local permissions issue. Symantec has released LiveUpdate Administrator 2.3.2 to fully address these concerns. Symantec recommends customers who have not yet upgraded to the latest release of Symantec LiveUpdate Administrator do so as soon as possible.
Symantec is not aware of any adverse customer impact from this issue.
As part of normal best practices, Symantec strongly recommends:
Restrict access to administration or management systems to privileged users.
Disable remote access or restrict it to trusted/authorized systems only.
Keep all operating systems and applications updated with the latest vendor patches.
Follow a multi-layered approach to security. Run both firewall and anti-malware applications, at a minimum, 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 detection of attacks or malicious activity related to exploitation of latent vulnerabilities
Symantec credits Tenable Network Security,http://www.tenable.com/ for reporting the original findings further identifying weaknesses in the resulting Symantec LiveUpdate Administrator 2.3.1 release.
BID:Security Focus, http://www.securityfocus.com, has assigned a Bugtraq ID (BID) to this issue for inclusion in the Security Focus vulnerability database.
CVE:This issue is a candidate for inclusion in the CVE list (http://cve.mitre.org), which standardizes names for security problems.
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