Unauthenticated code execution via UPnP parameter overflow
Published Oct 16, 2023 · Updated Sep 17, 2024
Buffer overflow in D-Link DI-7003G V2, DI-7100G V2, and DI-7200G V2 firmware allows remote attackers to execute arbitrary code. The upnp_ctrl.asp handler processes attacker-controlled remove_ext_proto or remove_ext_port values without enforcing the destination buffer's bounds, causing an out-of-bounds write. No authentication or user interaction is required, and successful exploitation executes code in the gateway service's context.
Summary
What happened
Buffer overflow in D-Link DI-7003G V2, DI-7100G V2, and DI-7200G V2 firmware allows remote attackers to execute arbitrary code. The upnp_ctrl.asp handler processes attacker-controlled remove_ext_proto or remove_ext_port values without enforcing the destination buffer's bounds, causing an out-of-bounds write. No authentication or user interaction is required, and successful exploitation executes code in the gateway service's context.
The record
- CVE
- CVE-2023-45576
- Published
- Oct 16, 2023
- Updated
- Sep 17, 2024
- Vendor
- D-Link Corporation
- Product
- D-Link DI-7003G V2 Firmware
- Classifications
- CWE-787, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Oct 16, 2023CVE publishedPublication date reported by the CVE source.
- Sep 17, 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?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <=23.08.25d1
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.
Public exploit references
- Archerber D-Link DI-7xxxx bug3 proof of conceptproof of concept · unverified
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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