Cisco Headend System Release 2.7 技术参考

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Operations Alert Bulletin 
Recommended Patch for All DBDS 
Platforms Using Solaris 10 
Background 
Cisco engineers have discovered that Solaris 10 has a security vulnerability in the 
telnet daemon in.telnetd. This security vulnerability allows users to obtain root 
access to Cisco's Digital Broadband Delivery System (DBDS) platform through 
telnet—without the need for the root password. If this vulnerability is not corrected, 
users can access root or any other user ID without a password.
 
All DBDS system operators running System Release (SR) versions 2.7/3.7 or SR 4.2 
are affected by this vulnerability. 
The engineering team has developed software patch 4.2.0.5p1 to remedy this 
security issue. Change request (CR) 67457 addresses this security issue. 
Cisco has made this security patch available, through a compressed file, on the Cisco 
FTP server. Because this patch can be installed without a need for a system reboot, 
Cisco urges system operators to install this patch immediately. 
For additional background information, see Sun Microsystems' Support Web page 
(reference Sun Alert 102802-1). 
 
 
Requirement 
All system operators running Solaris 10 must install software patch 4.2.0.5p1. This 
impacts systems running SR 2.7/3.7 and SR 4.2. 
 
Recommendation 
Cisco urges all system operators running SR 2.7/3.7 or SR 4.2 to obtain and install 
patch 4.2.0.5p1 immediately on their DNCS, Application Server, and RNCS, if the 
site is equipped with an RNCS. 
Important! This patch can be installed without the need for a system reboot.