Call interception and caller-ID spoofing via MRA authorization
Published Sep 4, 2024 · Updated Sep 4, 2024
Improper authorization in Cisco Expressway-E before 15.2 allows remote authenticated users to masquerade as another user. MRA command processing accepts a crafted command sequence without confirming that the authenticated account is authorized to use the targeted phone number. Reachability requires a clustered deployment with OAuth enabled and a valid MRA user account; exploitation permits call interception or caller-ID spoofing.
Summary
What happened
Improper authorization in Cisco Expressway-E before 15.2 allows remote authenticated users to masquerade as another user. MRA command processing accepts a crafted command sequence without confirming that the authenticated account is authorized to use the targeted phone number. Reachability requires a clustered deployment with OAuth enabled and a valid MRA user account; exploitation permits call interception or caller-ID spoofing.
The record
- CVE
- CVE-2024-20497
- Published
- Sep 4, 2024
- Updated
- Sep 4, 2024
- Vendor
- ClamAV
- Product
- Cisco TelePresence Video Communication Server (VCS) Expressway
- Classifications
- CWE-285, T1078
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Sep 4, 2024CVE publishedPublication date reported by the CVE source.
- Sep 4, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=X12.5.0
- Affected versionversion=X12.5.1
- Affected versionversion=X12.5.2
- Affected versionversion=X12.5.3
- Affected versionversion=X12.5.4
- Affected versionversion=X12.5.5
- Affected versionversion=X12.5.6
- Affected versionversion=X12.5.7
- Affected versionversion=X12.5.8
- Affected versionversion=X12.5.9
- Affected versionversion=X12.6.0
- Affected versionversion=X12.6.1
- Affected versionversion=X12.6.2
- Affected versionversion=X12.6.3
- Affected versionversion=X12.6.4
- Affected versionversion=X12.7.0
- Affected versionversion=X12.7.1
- Affected versionversion=X14.0.0
- Affected versionversion=X14.0.1
- Affected versionversion=X14.0.10
- Affected versionversion=X14.0.11
- Affected versionversion=X14.0.2
- Affected versionversion=X14.0.3
- Affected versionversion=X14.0.4
- Affected versionversion=X14.0.5
- Affected versionversion=X14.0.6
- Affected versionversion=X14.0.7
- Affected versionversion=X14.0.8
- Affected versionversion=X14.0.9
- Affected versionversion=X14.2.0
- Affected versionversion=X14.2.1
- Affected versionversion=X14.2.2
- Affected versionversion=X14.2.5
- Affected versionversion=X14.2.6
- Affected versionversion=X14.2.7
- Affected versionversion=X14.3.0
- Affected versionversion=X14.3.1
- Affected versionversion=X14.3.2
- Affected versionversion=X14.3.3
- Affected versionversion=X14.3.4
- Affected versionversion=X14.3.5
- Affected versionversion=X15.0.0
- Affected versionversion=X15.0.1
- Affected versionversion=X15.0.2
- Affected versionversion=X15.0.3
- Affected versionversion=X8.1
- Affected versionversion=X8.10.0
- Affected versionversion=X8.10.1
- Affected versionversion=X8.10.2
- Affected versionversion=X8.10.3
- Affected versionversion=X8.10.4
- Affected versionversion=X8.1.1
- Affected versionversion=X8.11.0
- Affected versionversion=X8.11.1
- Affected versionversion=X8.11.2
- Affected versionversion=X8.11.3
- Affected versionversion=X8.11.4
- Affected versionversion=X8.1.2
- Affected versionversion=X8.2
- Affected versionversion=X8.2.1
- Affected versionversion=X8.2.2
- Affected versionversion=X8.5
- Affected versionversion=X8.5.1
- Affected versionversion=X8.5.2
- Affected versionversion=X8.5.3
- Affected versionversion=X8.6
- Affected versionversion=X8.6.1
- Affected versionversion=X8.7
- Affected versionversion=X8.7.1
- Affected versionversion=X8.7.2
- Affected versionversion=X8.7.3
- Affected versionversion=X8.8
- Affected versionversion=X8.8.1
- Affected versionversion=X8.8.2
- Affected versionversion=X8.8.3
- Affected versionversion=X8.9
- Affected versionversion=X8.9.1
- Affected versionversion=X8.9.2
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo