Avira Antivirus for Endpoint AV Engine ISO Archive unrestricted upload

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
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CTI Interest Score
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5.2$0-$5k0.00

A vulnerability was found in Avira Antivirus for Endpoint, Antivirus for Small Business, Exchange Security Gateway), Internet Security Suite for Windows, Security Suite for Windows and Cross Platform Anti-Malware SDK (Anti-Malware Software). It has been rated as critical. This issue affects an unknown code block of the component AV Engine. The manipulation as part of a ISO Archive leads to a unrestricted upload vulnerability. Using CWE to declare the problem leads to CWE-434. The software allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Avira AV Engine before 8.3.54.138 allows virus-detection bypass via a crafted ISO archive. This affects versions before 8.3.54.138 of Antivirus for Endpoint, Antivirus for Small Business, Exchange Security (Gateway), Internet Security Suite for Windows, Prime, Free Security Suite for Windows, and Cross Platform Anti-malware SDK.

The weakness was disclosed 02/20/2020. The identification of this vulnerability is CVE-2020-9320 since 02/20/2020. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1608.002 according to MITRE ATT&CK.

Upgrading eliminates this vulnerability.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
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: Unrestricted upload
CWE: CWE-434 / CWE-284 / CWE-266
ATT&CK: T1608.002

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

02/20/2020 🔍
02/20/2020 +0 days 🔍
02/21/2020 +1 days 🔍
02/21/2020 +0 days 🔍

Sourcesinfo

Status: Not defined

CVE: CVE-2020-9320 (🔍)

Entryinfo

Created: 02/21/2020 08:35 AM
Updated: 02/21/2020 08:40 AM
Changes: 02/21/2020 08:35 AM (36), 02/21/2020 08:40 AM (18)
Complete: 🔍

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