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AUSCERT External Security Bulletin Redistribution
ESB-2021.3409
APSB21-91 Security update available for Adobe Connect
14 October 2021
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AusCERT Security Bulletin Summary
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Product: Adobe Connect
Publisher: Adobe
Operating System: Windows
macOS
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2021-40721 CVE-2021-40719
Original Bulletin:
https://helpx.adobe.com/security/products/connect/apsb21-91.html
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Security update available for Adobe Connect | APSB21-91
Bulletin ID Date Published Priority
APSB21-91 October 12, 2021 2
Summary
Adobe has released a security update for Adobe Connect. This update resolves
critical and important vulnerabilities. Successful exploitation could lead to
arbitrary code execution.
Affected product versions
Product Version Platform
Adobe Connect 11.2.2 and earlier versions All
Solution
Adobe categorizes these updates with the following priority ratings and
recommends users update their installation to the latest version.
Product Version Platform Priority Availability
Adobe Connect 11.2.3 All 2 Release note
Vulnerability details
Vulnerability Vulnerability CVSS
Category Impact Severity base CVSS vector CVE Number
score
Deserialization Arbitrary CVSS:3.0/AV:N/
of Untrusted Data code Critical 9.8 AC:L/PR:N/UI:N/ CVE-2021-40719
( CWE-502 ) execution S:U/C:H/I:H/A:H
Cross-site
Scripting Arbitrary CVSS:3.1/AV:N/
(Reflected XSS) code Important 6.4 AC:L/PR:N/UI:R/ CVE-2021-40721
execution S:U/C:L/I:L/A:N
( CWE-79 )
Acknowledgments
Adobe would like to thank the following for reporting these issues and for
working with Adobe to help protect our customers:
o Cyku (CVE-2021-40719)
o celesian (CVE-2021-40721)
For more information, visit https://helpx.adobe.com/security.html , or email
PSIRT@adobe.com.
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