Unauthenticated service interruption via Location header overflow
Published Apr 6, 2022 · Updated Aug 3, 2024
A buffer overflow in Digi Passport Firmware 1.5.1.1 and earlier allows remote attackers to interrupt service via an unauthenticated web request. The web server's authentication redirect path overflows the buffer used to construct the Location response header when processing an oversized redirect value. No account or user interaction is required; Digi reports denial of service as the only demonstrated consequence.
Summary
What happened
A buffer overflow in Digi Passport Firmware 1.5.1.1 and earlier allows remote attackers to interrupt service via an unauthenticated web request. The web server's authentication redirect path overflows the buffer used to construct the Location response header when processing an oversized redirect value. No account or user interaction is required; Digi reports denial of service as the only demonstrated consequence.
The record
- CVE
- CVE-2022-26952
- Published
- Apr 6, 2022
- Updated
- Aug 3, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-787, T1499
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Apr 6, 2022CVE publishedPublication date reported by the CVE source.
- Aug 3, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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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.
Public exploit references
- CVE-2022-26952 and CVE-2022-26953 proof of conceptproof of concept · unverified
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Technologies
Your stack
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Your stack
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