Authenticated service interruption via TCP-port buffer overflow
Published Dec 14, 2023 · Updated Aug 2, 2024
Buffer overflow in ZTE MC801A and MC801A1 firmware allows remote authenticated users to interrupt service via a crafted TCP-port value. The affected parameter-processing logic insufficiently validates the TCP-port value before placing it in a buffer, causing an out-of-bounds write. Exploitation requires high-privilege access from an adjacent network, and ZTE reports denial of service rather than code execution.
Summary
What happened
Buffer overflow in ZTE MC801A and MC801A1 firmware allows remote authenticated users to interrupt service via a crafted TCP-port value. The affected parameter-processing logic insufficiently validates the TCP-port value before placing it in a buffer, causing an out-of-bounds write. Exploitation requires high-privilege access from an adjacent network, and ZTE reports denial of service rather than code execution.
The record
- CVE
- CVE-2023-25642
- Published
- Dec 14, 2023
- Updated
- Aug 2, 2024
- Vendor
- ZTE Corporation
- Product
- MC801A1
- Classifications
- CWE-120, T1499.004
- Attack vector
- adjacent
- Privileges
- admin
Timeline
How it unfolded
- Dec 14, 2023CVE publishedPublication date reported by the CVE source.
- Aug 2, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=MC801A1_Elisa1_B04 <=B04
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
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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