5.5
MEDIUM
CVE-2020-9320
"Avira AV Engine ISO Archive Virus Detection Bypass"
Description

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. NOTE: Vendor asserts that vulnerability does not exist in product

INFO

Published Date :

Feb. 20, 2020, 10:15 p.m.

Last Modified :

Nov. 21, 2024, 5:40 a.m.

Remotely Exploitable :

No

Impact Score :

3.6

Exploitability Score :

1.8
Affected Products

The following products are affected by CVE-2020-9320 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Avira antivirus_server
2 Avira anti-malware_sdk
3 Avira avira_antivirus_for_endpoint
4 Avira avira_antivirus_for_small_business
5 Avira avira_exchange_security
6 Avira avira_free_security_suite
7 Avira avira_internet_security_suite
8 Avira avira_prime

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2020-9320 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2020-9320 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference http://packetstormsecurity.com/files/156472/AVIRA-Generic-Malformed-Container-Bypass.html
    Added Reference http://seclists.org/fulldisclosure/2020/Feb/31
    Added Reference https://blog.zoller.lu/p/from-low-hanging-fruit-department-avira.html
    Added Reference https://www.zoller.lu/%5BTZO-01-2020%5D%20AVIRA%20Generic%20Bypass%20ISO.pdf
  • CVE Modified by [email protected]

    Aug. 04, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    May. 17, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Apr. 11, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Mar. 21, 2024

    Action Type Old Value New Value
    Added Tag MITRE disputed
  • CVE Modified by [email protected]

    Nov. 07, 2023

    Action Type Old Value New Value
    Changed Description ** DISPUTED ** 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. NOTE: Vendor asserts that vulnerability does not exist in product. 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. NOTE: Vendor asserts that vulnerability does not exist in product
    Added Reference MITRE https://www.zoller.lu/%5BTZO-01-2020%5D%20AVIRA%20Generic%20Bypass%20ISO.pdf [No types assigned]
    Removed Reference MITRE https://www.zoller.lu/[TZO-01-2020]%20AVIRA%20Generic%20Bypass%20ISO.pdf
  • Modified Analysis by [email protected]

    Mar. 04, 2021

    Action Type Old Value New Value
    Changed Reference Type http://seclists.org/fulldisclosure/2020/Feb/31 No Types Assigned http://seclists.org/fulldisclosure/2020/Feb/31 Mailing List, Third Party Advisory
  • CVE Modified by [email protected]

    Feb. 01, 2021

    Action Type Old Value New Value
    Changed Description 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. ** DISPUTED ** 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. NOTE: Vendor asserts that vulnerability does not exist in product.
  • CVE Modified by [email protected]

    Feb. 28, 2020

    Action Type Old Value New Value
    Added Reference http://seclists.org/fulldisclosure/2020/Feb/31 [No Types Assigned]
  • Initial Analysis by [email protected]

    Feb. 26, 2020

    Action Type Old Value New Value
    Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism
    Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:N/I:P/A:N)
    Added CVSS V3.1 NIST AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
    Changed Reference Type http://packetstormsecurity.com/files/156472/AVIRA-Generic-Malformed-Container-Bypass.html No Types Assigned http://packetstormsecurity.com/files/156472/AVIRA-Generic-Malformed-Container-Bypass.html Third Party Advisory, VDB Entry
    Changed Reference Type https://blog.zoller.lu/p/from-low-hanging-fruit-department-avira.html No Types Assigned https://blog.zoller.lu/p/from-low-hanging-fruit-department-avira.html Third Party Advisory
    Changed Reference Type https://www.zoller.lu/[TZO-01-2020]%20AVIRA%20Generic%20Bypass%20ISO.pdf Broken Link https://www.zoller.lu/[TZO-01-2020]%20AVIRA%20Generic%20Bypass%20ISO.pdf Third Party Advisory
    Added CWE NIST CWE-434
    Added CPE Configuration OR *cpe:2.3:a:avira:anti-malware_sdk:*:*:*:*:*:*:*:* versions up to (excluding) 8.3.54.138 *cpe:2.3:a:avira:antivirus_server:*:*:*:*:*:*:*:* versions up to (excluding) 8.3.54.138 *cpe:2.3:a:avira:avira_antivirus_for_endpoint:*:*:*:*:*:*:*:* versions up to (excluding) 8.3.54.138 *cpe:2.3:a:avira:avira_antivirus_for_small_business:*:*:*:*:*:*:*:* versions up to (excluding) 8.3.54.138 *cpe:2.3:a:avira:avira_exchange_security:*:*:*:*:*:*:*:* versions up to (excluding) 8.3.54.138 *cpe:2.3:a:avira:avira_free_security_suite:*:*:*:*:*:windows:*:* versions up to (excluding) 8.3.54.138 *cpe:2.3:a:avira:avira_internet_security_suite:*:*:*:*:*:windows:*:* versions up to (excluding) 8.3.54.138 *cpe:2.3:a:avira:avira_prime:*:*:*:*:*:*:*:* versions up to (excluding) 8.3.54.138
  • CVE Modified by [email protected]

    Feb. 21, 2020

    Action Type Old Value New Value
    Added Reference http://packetstormsecurity.com/files/156472/AVIRA-Generic-Malformed-Container-Bypass.html [No Types Assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2020-9320 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2020-9320 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.06 }} -0.00%

score

0.28472

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability