EMC Avamar Server 7.2.x/7.3.x Maintenance Page improper authentication

CVSS Meta Temp Score
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CTI Interest Score
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8.2$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in EMC Avamar Server 7.2.x/7.3.x. This issue affects some unknown processing of the component Maintenance Page. Executing a manipulation can lead to improper authentication. This vulnerability is registered as CVE-2017-4989. It is possible to launch the attack remotely. No exploit is available. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability classified as critical was found in EMC Avamar Server 7.2.x/7.3.x (Backup Software). This vulnerability affects an unknown part of the component Maintenance Page. The manipulation with an unknown input leads to a improper authentication vulnerability. The CWE definition for the vulnerability is CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. As an impact it is known to affect confidentiality, integrity, and availability.

The bug was discovered 06/20/2017. The weakness was published 06/20/2017 as ESA-2017-054 as confirmed security advisory (Website). The advisory is shared for download at emc.com. This vulnerability was named CVE-2017-4989 since 12/29/2016. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 101110 (EMC Avamar ADS / AVE 7.2.x < 7.2.1 Hotfix 277897 / 7.3.x < 7.3.1 Hotfix 276676 / 7.4.x < 7.4.1 Hotfix 279294 Multiple Vulnerabilities (ESA-2017-054)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Misc. and running in the context c.

Upgrading to version 7.4.0 eliminates this vulnerability. Applying the patch 7.2.1 Hotfix 277897/7.3.1 Hotfix 276676 is able to eliminate this problem. The best possible mitigation is suggested to be patching the affected component. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (101110), SecurityFocus (BID 99243†) and SecurityTracker (ID 1038718†). Similar entries are available at VDB-78052, VDB-78053, VDB-78054 and VDB-91911. Once again VulDB remains the best source for vulnerability data.

Productinfo

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Vendor

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Improper authentication
CWE: CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 101110
Nessus Name: EMC Avamar ADS / AVE 7.2.x < 7.2.1 Hotfix 277897 / 7.3.x < 7.3.1 Hotfix 276676 / 7.4.x < 7.4.1 Hotfix 279294 Multiple Vulnerabilities (ESA-2017-054)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: Avamar Server 7.4.0
Patch: 7.2.1 Hotfix 277897/7.3.1 Hotfix 276676

Timelineinfo

12/29/2016 🔍
06/20/2017 +173 days 🔍
06/20/2017 +0 days 🔍
06/20/2017 +0 days 🔍
06/20/2017 +0 days 🔍
06/21/2017 +1 days 🔍
06/21/2017 +0 days 🔍
06/23/2017 +2 days 🔍
06/29/2017 +6 days 🔍
12/29/2020 +1279 days 🔍

Sourcesinfo

Vendor: dellemc.com

Advisory: ESA-2017-054
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-4989 (🔍)
GCVE (CVE): GCVE-0-2017-4989
GCVE (VulDB): GCVE-100-102700
SecurityFocus: 99243 - EMC Avamar Authentication Bypass And Arbitrary File Upload Vulnerabilities
SecurityTracker: 1038718

See also: 🔍

Entryinfo

Created: 06/21/2017 08:57
Updated: 12/29/2020 10:54
Changes: 06/21/2017 08:57 (74), 10/19/2019 12:13 (6), 12/29/2020 10:54 (2)
Complete: 🔍
Cache ID: 216::103

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