Root code execution via unchecked credential decoding
Published Jun 12, 2023 · Updated Jan 6, 2025
Stack-based buffer overflow in TP-Link Kasa EC70 2.3.4 Build 20220902 rel.69498 and earlier allows remote attackers to execute code. The tpsocket_base64_decode() function decodes an Authentication-header password into a fixed 128-byte stack buffer without an output-length limit. The attacker must share the device's network and know the discoverable username; successful exploitation yields a root shell.
Summary
What happened
Stack-based buffer overflow in TP-Link Kasa EC70 2.3.4 Build 20220902 rel.69498 and earlier allows remote attackers to execute code. The tpsocket_base64_decode() function decodes an Authentication-header password into a fixed 128-byte stack buffer without an output-length limit. The attacker must share the device's network and know the discoverable username; successful exploitation yields a root shell.
The record
- CVE
- CVE-2023-28478
- Published
- Jun 12, 2023
- Updated
- Jan 6, 2025
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-787, T1210
- Attack vector
- adjacent
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jun 12, 2023CVE publishedPublication date reported by the CVE source.
- Jan 6, 2025Record 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
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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