Unauthenticated email flooding via rate-limit bypass
Published Aug 8, 2022 · Updated Aug 3, 2024
Denial of service in Zammad 5.2.0 allows remote attackers to flood a known account with password-reset emails via repeated requests. The forgot-password path accepts repeated reset requests despite its rate limit, causing each accepted request to generate another email; the exact counter or validation error is undisclosed. No authentication is required, but a valid account identifier must be known; the bounded impact is email flooding and associated service interruption.
Summary
What happened
Denial of service in Zammad 5.2.0 allows remote attackers to flood a known account with password-reset emails via repeated requests. The forgot-password path accepts repeated reset requests despite its rate limit, causing each accepted request to generate another email; the exact counter or validation error is undisclosed. No authentication is required, but a valid account identifier must be known; the bounded impact is email flooding and associated service interruption.
The record
- CVE
- CVE-2022-35488
- Published
- Aug 8, 2022
- Updated
- Aug 3, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- T1499.003
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 8, 2022CVE publishedPublication date reported by the CVE source.
- Aug 3, 2024Record updatedLatest update available in the CVE record.
Exploitability
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What is affected?
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Published CVSS scores
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Attacks
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Technologies
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