Information exposure via unenforced HSTS downgrade
Published Jun 11, 2024 · Updated Feb 11, 2025
Cleartext transmission in Siemens SINEC Traffic Analyzer before 1.2 allows attackers to expose confidential information via downgrade attacks. The web server does not return an HSTS policy, so a browser is not required to retain HTTPS and can be redirected to an unencrypted HTTP connection. The attacker must obtain a local man-in-the-middle position; successful downgrading exposes traffic and permits modification in transit without interrupting service.
Summary
What happened
Cleartext transmission in Siemens SINEC Traffic Analyzer before 1.2 allows attackers to expose confidential information via downgrade attacks. The web server does not return an HSTS policy, so a browser is not required to retain HTTPS and can be redirected to an unencrypted HTTP connection. The attacker must obtain a local man-in-the-middle position; successful downgrading exposes traffic and permits modification in transit without interrupting service.
The record
- CVE
- CVE-2024-35210
- Published
- Jun 11, 2024
- Updated
- Feb 11, 2025
- Vendor
- Siemens
- Product
- SINEC Traffic Analyzer
- Classifications
- CWE-319, T1557
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jun 11, 2024CVE publishedPublication date reported by the CVE source.
- Feb 11, 2025Record 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=0 <1.2
- Affected versionversion=0 <V1.2
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.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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