Administrative privilege escalation via unvalidated certificate SAN
Published Oct 5, 2021 · Updated Sep 16, 2024
Certificate validation in affected TIBCO FTL Server releases allows remote authenticated users to obtain illegitimate client certificates. The certificate-issuance path accepts an FTL user's unvalidated subject alternative name and embeds it in a client certificate. A non-administrative FTL account and user interaction are required; the resulting certificate enables traffic interception or administrative privilege escalation.
Summary
What happened
Certificate validation in affected TIBCO FTL Server releases allows remote authenticated users to obtain illegitimate client certificates. The certificate-issuance path accepts an FTL user's unvalidated subject alternative name and embeds it in a client certificate. A non-administrative FTL account and user interaction are required; the resulting certificate enables traffic interception or administrative privilege escalation.
The record
- CVE
- CVE-2021-35497
- Published
- Oct 5, 2021
- Updated
- Sep 16, 2024
- Vendor
- TIBCO Software Inc.
- Product
- TIBCO FTL - Community Edition
- Classifications
- CWE-295, T1649
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Oct 5, 2021CVE publishedPublication date reported by the CVE source.
- Sep 16, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=6.2.0
- Affected versionversion=6.3.0
- Affected versionversion=6.3.1
- Affected versionversion=6.4.0
- Affected versionversion=6.5.0
- Affected versionversion=6.6.0
- Affected versionversion=6.6.1
- Affected versionversion=6.7.0
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.
Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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