Cisco Webex Meetings Client on Android Avatar access control

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CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.1$0-$5k1.00

A vulnerability classified as critical was found in Cisco Webex Meetings Client on Android (Unified Communication Software) (affected version unknown). Affected by this vulnerability is an unknown code block of the component Avatar Handler. The manipulation with an unknown input leads to a privilege escalation vulnerability. The CWE definition for the vulnerability is CWE-284. As an impact it is known to affect integrity. The summary by CVE is:

A vulnerability in Cisco Webex Meetings for Android could allow an authenticated, remote attacker to modify the avatar of another user. This vulnerability is due to improper authorization checks. An attacker could exploit this vulnerability by sending a crafted request to the Cisco Webex Meetings client of a targeted user of a meeting in which they are both participants. A successful exploit could allow the attacker to modify the avatar of the targeted user.

The weakness was shared 04/08/2021 as cisco-sa-webex-andro-iac-f3UR8frB. It is possible to read the advisory at tools.cisco.com. This vulnerability is known as CVE-2021-1467 since 11/13/2020. The exploitation appears to be easy. The attack can be launched remotely. The requirement for exploitation is a single authentication. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 04/11/2021). The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

Upgrading eliminates this vulnerability.

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VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2infoedit

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

Exploitinginfoedit

Class: Privilege escalation
CWE: CWE-284
ATT&CK: T1068

Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat: 🔍
Adversaries: 🔍
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Countermeasuresinfoedit

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Timelineinfoedit

11/13/2020 CVE assigned
04/08/2021 +145 days Advisory disclosed
04/08/2021 +0 days VulDB entry created
04/11/2021 +3 days VulDB last update

Sourcesinfoedit

Vendor: https://www.cisco.com/

Advisory: cisco-sa-webex-andro-iac-f3UR8frB
Status: Confirmed

CVE: CVE-2021-1467 (🔒)
scip Labs: https://www.scip.ch/en/?labs.20130704

Entryinfoedit

Created: 04/08/2021 10:48 AM
Updated: 04/11/2021 08:51 PM
Changes: (1) source_cve_cna
Complete: 🔍

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