Memory corruption via NewInternalClient format string
Published Oct 25, 2022 · Updated Apr 15, 2025
Format string injection in iota All-In-One Security Kit 6.9X and 6.9Z allows remote attackers to corrupt memory via UPnP responses. The DoUpdateUPnPbyService handler inserts the NewInternalClient XML value into a log message, then passes that message as the format argument to log rather than as data. Exploitation requires an attacker on the adjacent network to answer M-SEARCH traffic and sustain a malicious UPnP negotiation; it can alter memory or crash the hub, while disclosure output requires physical UART access.
Summary
What happened
Format string injection in iota All-In-One Security Kit 6.9X and 6.9Z allows remote attackers to corrupt memory via UPnP responses. The DoUpdateUPnPbyService handler inserts the NewInternalClient XML value into a log message, then passes that message as the format argument to log rather than as data. Exploitation requires an attacker on the adjacent network to answer M-SEARCH traffic and sustain a malicious UPnP negotiation; it can alter memory or crash the hub, while disclosure output requires physical UART access.
The record
- CVE
- CVE-2022-35880
- Published
- Oct 25, 2022
- Updated
- Apr 15, 2025
- Vendor
- Abode Systems, Inc.
- Product
- iota All-In-One Security Kit
- Classifications
- CWE-134, T1499
- Attack vector
- adjacent
- Privileges
- unauthenticated
Timeline
How it unfolded
- Oct 25, 2022CVE publishedPublication date reported by the CVE source.
- Apr 15, 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=6.9X
- Affected versionversion=6.9Z
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
- NewInternalClient format-string proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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