CVE-2020-25757: Input Validation
First published: Tue Dec 15 2020(Updated: )
A lack of input validation and access controls in Lua CGIs on D-Link DSR VPN routers may result in arbitrary input being passed to system command APIs, resulting in arbitrary command execution with root privileges. This affects DSR-150, DSR-250, DSR-500, and DSR-1000AC with firmware 3.14 and 3.17.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Dlink Dsr-150 Firmware | <=3.17 | |
| Dlink Dsr-150 | ||
| Dlink Dsr-150n Firmware | <=3.17 | |
| Dlink Dsr-150n | ||
| Dlink Dsr-250 Firmware | <=3.17 | |
| Dlink Dsr-250 | ||
| Dlink Dsr-250n Firmware | <=3.17 | |
| Dlink Dsr-250n | ||
| Dlink Dsr-500 Firmware | <=3.17 | |
| Dlink Dsr-500 | ||
| Dlink Dsr-500n Firmware | ||
| Dlink Dsr-500n | ||
| <=3.17 | ||
| Dlink Dsr-1000 Firmware | <=3.17 | |
| Dlink Dsr-1000 | ||
| Dlink Dsr-1000n Firmware | <=3.17 | |
| Dlink Dsr-1000n | ||
| <=3.17 | ||
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Reference Links
Frequently Asked Questions
What is CVE-2020-25757?
CVE-2020-25757 is a vulnerability that allows arbitrary command execution with root privileges on D-Link DSR VPN routers.
Which devices are affected by CVE-2020-25757?
D-Link DSR-150, DSR-250, DSR-500, and DSR-1000AC with firmware 3.14 and 3.17 are affected.
What is the severity of CVE-2020-25757?
CVE-2020-25757 has a severity rating of 8.8 (high).
How can CVE-2020-25757 be exploited?
CVE-2020-25757 can be exploited by passing arbitrary input to system command APIs in Lua CGIs.
How can I fix CVE-2020-25757?
To fix CVE-2020-25757, update the firmware of the affected D-Link DSR VPN routers to version 3.17 or newer.
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- agent/severity
- agent/references
- agent/author
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- agent/event
- agent/weakness
- agent/description
- agent/last-modified-date
- agent/tags
- agent/softwarecombine
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- collector/mitre-cve
- source/MITRE
- vendor/dlink
- canonical/dlink dsr-150 firmware
- version/dlink dsr-150 firmware/3.17
- canonical/dlink dsr-150
- canonical/dlink dsr-150n firmware
- version/dlink dsr-150n firmware/3.17
- canonical/dlink dsr-150n
- canonical/dlink dsr-250 firmware
- version/dlink dsr-250 firmware/3.17
- canonical/dlink dsr-250
- canonical/dlink dsr-250n firmware
- version/dlink dsr-250n firmware/3.17
- canonical/dlink dsr-250n
- canonical/dlink dsr-500 firmware
- version/dlink dsr-500 firmware/3.17
- canonical/dlink dsr-500
- canonical/dlink dsr-500n firmware
- canonical/dlink dsr-500n
- canonical/dlink dsr-1000 firmware
- version/dlink dsr-1000 firmware/3.17
- canonical/dlink dsr-1000
- canonical/dlink dsr-1000n firmware
- version/dlink dsr-1000n firmware/3.17
- canonical/dlink dsr-1000n