Zoom Client for Meetings 4.6.11 airhost.exe inadequate encryption ⚔ [Disputed]

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.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.2$0-$5k0.00

Summaryinfo

A vulnerability was found in Zoom Client for Meetings 4.6.11 and classified as critical. This affects an unknown function of the file airhost.exe. The manipulation with the input 3423423432325249 results in inadequate encryption. This vulnerability is cataloged as CVE-2020-11877. The attack may be launched remotely. There is no exploit available. There are still doubts about whether this vulnerability truly exists.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Zoom Client for Meetings 4.6.11 (Unified Communication Software). Affected is an unknown code of the file airhost.exe. The manipulation with the input value 3423423432325249 leads to a inadequate encryption vulnerability. CWE is classifying the issue as CWE-326. The product stores or transmits sensitive data using an encryption scheme that is theoretically sound, but is not strong enough for the level of protection required. This is going to have an impact on confidentiality. CVE summarizes:

airhost.exe in Zoom Client for Meetings 4.6.11 uses 3423423432325249 as the Initialization Vector (IV) for AES-256 CBC encryption.

The weakness was shared 04/17/2020. This vulnerability is traded as CVE-2020-11877 since 04/17/2020. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 08/01/2024). This vulnerability is assigned to T1600 by the MITRE ATT&CK project.

As 0-day the estimated underground price was around $5k-$25k. The real existence of this vulnerability is still doubted at the moment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The entry VDB-154073 is related to this item. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.2
VulDB Meta Temp Score: 6.2

VulDB Base Score: 3.7
VulDB Temp Score: 3.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CNA Base Score: 7.5
CNA Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Inadequate encryption
CWE: CWE-326 / CWE-310
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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/17/2020 🔍
04/17/2020 +0 days 🔍
04/18/2020 +1 days 🔍
08/01/2024 +1566 days 🔍

Sourcesinfo

Advisory: dev.io
Status: Not defined
Disputed: 🔍

CVE: CVE-2020-11877 (🔍)
GCVE (CVE): GCVE-0-2020-11877
GCVE (VulDB): GCVE-100-154074
See also: 🔍

Entryinfo

Created: 04/18/2020 09:05
Updated: 08/01/2024 16:18
Changes: 04/18/2020 09:05 (38), 04/18/2020 09:10 (18), 05/31/2024 15:41 (17), 07/18/2024 22:43 (3), 08/01/2024 16:18 (12)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Discussion

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