Session-token theft via insecure embedded-media requests
Published Jul 17, 2024 · Updated Aug 1, 2024
Information exposure in Cisco Webex App allows attackers to capture session tokens through insecure embedded-media requests. Its media retrieval function sends requests to backend services without adequately protecting session information when rendering message-embedded images. Exploitation requires a targeted user to render attacker-supplied media and the attacker to observe traffic from a privileged adjacent-network position; captured tokens enable actions as that user.
Summary
What happened
Information exposure in Cisco Webex App allows attackers to capture session tokens through insecure embedded-media requests. Its media retrieval function sends requests to backend services without adequately protecting session information when rendering message-embedded images. Exploitation requires a targeted user to render attacker-supplied media and the attacker to observe traffic from a privileged adjacent-network position; captured tokens enable actions as that user.
The record
- CVE
- CVE-2024-20395
- Published
- Jul 17, 2024
- Updated
- Aug 1, 2024
- Vendor
- ClamAV
- Product
- Webex App
- Classifications
- CWE-523, T1557
- Attack vector
- adjacent
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 17, 2024CVE publishedPublication date reported by the CVE source.
- Aug 1, 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=3.0.13464.0
- Affected versionversion=3.0.13538.0
- Affected versionversion=3.0.13588.0
- Affected versionversion=3.0.14154.0
- Affected versionversion=3.0.14234.0
- Affected versionversion=3.0.14375.0
- Affected versionversion=3.0.14741.0
- Affected versionversion=3.0.14866.0
- Affected versionversion=3.0.15015.0
- Affected versionversion=3.0.15036.0
- Affected versionversion=3.0.15092.0
- Affected versionversion=3.0.15131.0
- Affected versionversion=3.0.15164.0
- Affected versionversion=3.0.15221.0
- Affected versionversion=3.0.15333.0
- Affected versionversion=3.0.15410.0
- Affected versionversion=3.0.15485.0
- Affected versionversion=3.0.15645.0
- Affected versionversion=3.0.15711.0
- Affected versionversion=3.0.16040.0
- Affected versionversion=3.0.16269.0
- Affected versionversion=3.0.16273.0
- Affected versionversion=3.0.16285.0
- Affected versionversion=4.0
- Affected versionversion=4.1
- Affected versionversion=4.10
- Affected versionversion=4.10.343
- Affected versionversion=4.11.211
- Affected versionversion=4.12
- Affected versionversion=4.12.236
- Affected versionversion=4.13
- Affected versionversion=4.13.200
- Affected versionversion=4.14
- Affected versionversion=4.15
- Affected versionversion=4.1.57
- Affected versionversion=4.16
- Affected versionversion=4.17
- Affected versionversion=4.18
- Affected versionversion=4.19
- Affected versionversion=4.1.92
- Affected versionversion=4.2
- Affected versionversion=4.20
- Affected versionversion=42.10
- Affected versionversion=42.10.0.23814
- Affected versionversion=42.10.0.24000
- Affected versionversion=42.1.0.169
- Affected versionversion=42.1.0.21190
- Affected versionversion=42.1.0.2219
- Affected versionversion=42.11
- Affected versionversion=42.11.0.24187
- Affected versionversion=42.12
- Affected versionversion=42.12.0.24485
- Affected versionversion=42.2
- Affected versionversion=42.2.0.21338
- Affected versionversion=42.2.0.21486
- Affected versionversion=42.3
- Affected versionversion=42.3.0.21576
- Affected versionversion=42.4.1.22032
- Affected versionversion=4.2.42
- Affected versionversion=42.5.0.22259
- Affected versionversion=42.6
- Affected versionversion=42.6.0.22565
- Affected versionversion=42.6.0.22645
- Affected versionversion=42.7
- Affected versionversion=42.7.0.22904
- Affected versionversion=42.7.0.23054
- Affected versionversion=4.2.75
- Affected versionversion=42.8
- Affected versionversion=42.8.0.23214
- Affected versionversion=42.8.0.23281
- Affected versionversion=42.9
- Affected versionversion=42.9.0.23494
- Affected versionversion=4.3
- Affected versionversion=43.1
- Affected versionversion=43.1.0.24716
- Affected versionversion=43.2
- Affected versionversion=43.2.0.25157
- Affected versionversion=43.2.0.25211
- Affected versionversion=43.3
- Affected versionversion=43.3.0.25468
- Affected versionversion=43.4
- Affected versionversion=43.4.0.25788
- Affected versionversion=4.4
- Affected versionversion=4.5
- Affected versionversion=4.5.224
- Affected versionversion=4.6
- Affected versionversion=4.6.197
- Affected versionversion=4.7.78
- Affected versionversion=4.8
- Affected versionversion=4.8.170
- Affected versionversion=4.9
- Affected versionversion=4.9.205
- Affected versionversion=4.9.252
- Affected versionversion=4.9.269
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
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Your stack
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