Privilege escalation via predictable cookie salt
Published Feb 28, 2020 · Updated Aug 4, 2024
BlaB! AX and BlaB! WS version 19.11 allow remote authenticated users to escalate privileges by forging session cookies. The session mechanism derives its cookie salt from insufficiently random values, allowing a guest or user holding a valid session cookie to retrieve the salt and construct a cookie for an arbitrary user or administrator. Exploitation requires an existing guest or user session and can grant elevated account access; the record does not report direct service interruption.
Summary
What happened
BlaB! AX and BlaB! WS version 19.11 allow remote authenticated users to escalate privileges by forging session cookies. The session mechanism derives its cookie salt from insufficiently random values, allowing a guest or user holding a valid session cookie to retrieve the salt and construct a cookie for an arbitrary user or administrator. Exploitation requires an existing guest or user session and can grant elevated account access; the record does not report direct service interruption.
The record
- CVE
- CVE-2020-9449
- Published
- Feb 28, 2020
- Updated
- Aug 4, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-330, T1078
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Feb 28, 2020CVE publishedPublication date reported by the CVE source.
- Aug 4, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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What is affected?
Affected products and versions are unavailable in this record.
Attacks
What attackers are doing with it
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Public exploit references
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Technologies
Your stack
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Your stack
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