ESA-2017-054: EMC Avamar Multiple Vulnerabilities

[EMC Product Security Response Center <Security_Alert@xxxxxxx>]

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ESA-2017-054: EMC Avamar Multiple Vulnerabilities 

EMC Identifier: ESA-2017-054
CVE Identifiers:
CVE-2017-4989, CVE-2017-4990

Affected products:
?       EMC Avamar Server Software 7.4.1-58, 7.4.0-242 (CVE-2017-4990)
?       EMC Avamar Server Software 7.3.1-125, 7.3.0-233, 7.3.0-226 
(CVE-2017-4989, CVE-2017-4990)
?       EMC Avamar Server Software 7.2.1-32, 7.2.1-31, 7.2.0-401 (CVE-2017-4989)
Severity Rating: See below for individual scores

Summary:  
EMC Avamar Server contains security vulnerabilities that may potentially be 
exploited by malicious users to compromise the affected system.

Details:  

?       EMC Avamar Server Authentication Bypass Vulnerability (CVE-2017-4989)

An unauthenticated remote attacker may potentially bypass the authentication 
process to gain access to the system maintenance page. This may be exploited by 
an attacker to view sensitive information, perform software updates, or run 
maintenance workflows.

CVSS v3 Base Score:  8.2 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N)

?       EMC Avamar Server Unauthorized File Upload Vulnerability (CVE-2017-4990)

An unauthorized attacker may leverage the file upload feature of the system 
maintenance page to load a maliciously crafted file to any directory which 
could allow the attacker to execute arbitrary code on the Avamar Server system.

CVSS v3 Base Score: 10.0 (AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H)

Resolution:  
Resolutions are available for the following EMC Avamar releases:
?       Avamar Server Version 7.4.1 with Hotfix 279294
?       Avamar Server Version 7.3.1 with Hotfix 276676
?       Avamar Server Version 7.2.1 with Hotfix 277897

EMC recommends all customers apply the appropriate hotfix at the earliest 
opportunity. 

Link to remedies:

To upgrade your EMC Avamar system, contact your account representative or EMC 
Remote Proactive Customer Support at https://support.emc.com and refer to this 
article number.

Read and use the information in this EMC Security Advisory to assist in 
avoiding any situation that might arise from the problems described herein. If 
you have any questions regarding this product alert, contact EMC Software 
Technical Support at 1-877-534-2867.

For an explanation of Severity Ratings, refer to EMC Knowledgebase solution 
emc218831. EMC recommends all customers take into account both the base score 
and any relevant temporal and environmental scores which may impact the 
potential severity associated with particular security vulnerability.

EMC recommends that all users determine the applicability of this information 
to their individual situations and take appropriate action. The information set 
forth herein is provided "as is" without warranty of any kind. EMC disclaims 
all warranties, either express or implied, including the warranties of 
merchantability, fitness for a particular purpose, title and non-infringement. 
In no event, shall EMC or its suppliers, be liable for any damages whatsoever 
including direct, indirect, incidental, consequential, loss of business profits 
or special damages, even if EMC or its suppliers have been advised of the 
possibility of such damages. Some states do not allow the exclusion or 
limitation of liability for consequential or incidental damages, so the 
foregoing limitation may not apply.
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