Cookie interception via missing Secure attribute
Published Jun 14, 2022 · Updated Jul 9, 2026
Missing Secure protection in Software AG CONNX 6.2.0.1269 allows man-in-the-middle attackers to intercept an anonymous session cookie. The application emits the .ASPXANONYMOUS cookie in a Set-Cookie header without the Secure attribute, so browsers can transmit it over unencrypted HTTP. Interception requires an HTTP request across a network path the attacker can observe, and the demonstrated impact is disclosure of that cookie.
Summary
What happened
Missing Secure protection in Software AG CONNX 6.2.0.1269 allows man-in-the-middle attackers to intercept an anonymous session cookie. The application emits the .ASPXANONYMOUS cookie in a Set-Cookie header without the Secure attribute, so browsers can transmit it over unencrypted HTTP. Interception requires an HTTP request across a network path the attacker can observe, and the demonstrated impact is disclosure of that cookie.
The record
- CVE
- CVE-2021-40650
- Published
- Jun 14, 2022
- Updated
- Jul 9, 2026
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-311, T1557, T1539
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jun 14, 2022CVE publishedPublication date reported by the CVE source.
- Jul 9, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
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
- CONNX insecure-cookie response demonstrationproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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