What is CVE-2021-27708?

CVE-2021-27708 is a command injection vulnerability in the TOTOLINK X5000R and A720R routers.

How does CVE-2021-27708 impact the affected routers?

CVE-2021-27708 allows remote attackers to execute arbitrary OS commands on the TOTOLINK X5000R and A720R routers.

What is the severity of CVE-2021-27708?

CVE-2021-27708 has a severity rating of 9.8 (critical).

Which firmware versions are affected by CVE-2021-27708?

The TOTOLINK X5000R router with firmware v9.1.0u.6118_B20201102 and the TOTOLINK A720R router with firmware v4.1.5cu.470_B20200911 are affected by CVE-2021-27708.

How can I fix CVE-2021-27708?

To fix CVE-2021-27708, it is recommended to update the firmware of the TOTOLINK X5000R and A720R routers to a patched version provided by the manufacturer.

Vulnerability/
CVE-2021-27708

critical

CWE

78 77

14/4/2021

3/8/2024

CVE-2021-27708: OS Command Injection

First published: Wed Apr 14 2021(Updated: )

Command Injection in TOTOLINK X5000R router with firmware v9.1.0u.6118_B20201102, and TOTOLINK A720R router with firmware v4.1.5cu.470_B20200911 allows remote attackers to execute arbitrary OS commands by sending a modified HTTP request. This occurs because the function executes glibc's system function with untrusted input. In the function, "command" parameter is directly passed to the attacker, allowing them to control the "command" field to attack the OS.

Credit: cve@mitre.org

Affected Software	Affected Version	How to fix
Totolink X5000r Firmware	=9.1.0u.6118_b20201102
TOTOLINK X5000R
Totolink A720r Firmware	=4.1.5cu.470_b20200911
TOTOLINK A720R

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Frequently Asked Questions

What is CVE-2021-27708?
CVE-2021-27708 is a command injection vulnerability in the TOTOLINK X5000R and A720R routers.
How does CVE-2021-27708 impact the affected routers?
CVE-2021-27708 allows remote attackers to execute arbitrary OS commands on the TOTOLINK X5000R and A720R routers.
What is the severity of CVE-2021-27708?
CVE-2021-27708 has a severity rating of 9.8 (critical).
Which firmware versions are affected by CVE-2021-27708?
The TOTOLINK X5000R router with firmware v9.1.0u.6118_B20201102 and the TOTOLINK A720R router with firmware v4.1.5cu.470_B20200911 are affected by CVE-2021-27708.
How can I fix CVE-2021-27708?
To fix CVE-2021-27708, it is recommended to update the firmware of the TOTOLINK X5000R and A720R routers to a patched version provided by the manufacturer.

collector/nvd-index
agent/softwarecombine
agent/weakness
agent/references
collector/mitre-cve
source/MITRE
agent/author
agent/last-modified-date
agent/severity
agent/description
agent/type
agent/first-publish-date
agent/event
agent/tags
vendor/totolink
canonical/totolink x5000r firmware
version/totolink x5000r firmware/9.1.0u.6118_b20201102
canonical/totolink x5000r
canonical/totolink a720r firmware
version/totolink a720r firmware/4.1.5cu.470_b20200911
canonical/totolink a720r

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