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Category:   Application (Generic)  >   EMC Avamar Vendors:   EMC
EMC Avamar Server Bugs Let Remote Users Bypass Authentication and Upload Arbitrary Files
SecurityTracker Alert ID:  1038718
SecurityTracker URL:  http://securitytracker.com/id/1038718
CVE Reference:   CVE-2017-4989, CVE-2017-4990   (Links to External Site)
Date:  Jun 20 2017
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 7.2.x, 7.3.x, 7.4.x
Description:   Two vulnerabilities were reported in EMC Avamar Server. A remote user can upload files to the target system. A remote user can bypass authentication.

A remote user can bypass authentication on the target system and access the system maintenance page to view sensitive information, perform software updates, and run maintenance workflows [CVE-2017-4989]. Versions 7.2.x and 7.3.x are affected.

A remote user can trigger a flaw in the system maintenance page upload feature to upload arbitrary files to arbitrary directories [CVE-2017-4990]. This can be exploited to execute arbitrary code on the target system. Versions 7.3.x and 7.4.x are affected.

Impact:   A remote user can upload arbitrary files to the target system and then execute the files.

A remote user can bypass authentication on the target system.

Solution:   The vendor has issued a fix (Advisory ESA-2017-054; 7.2.1 with Hotfix 277897, 7.3.1 with Hotfix 276676, 7.4.1 with Hotfix 279294).
Vendor URL:  www.emc.com/ (Links to External Site)
Cause:   Access control error, Authentication error
Underlying OS:  Linux (Any), UNIX (AIX), UNIX (FreeBSD), UNIX (HP/UX), UNIX (macOS/OS X), UNIX (Open UNIX-SCO), UNIX (Solaris - SunOS), Windows (Any)

Message History:   None.


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