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CVE-2021-27708 Details

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:9.8 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://hackmd.io/7FtB06f-SJ-SCfkMYcXYxA CVEExploitThird Party Advisory
https://hackmd.io/mDgIBvoxSPCZrZiZjfQGhw CVEExploitThird Party Advisory
https://hackmd.io/7FtB06f-SJ-SCfkMYcXYxA [email protected]ExploitThird Party Advisory
https://hackmd.io/mDgIBvoxSPCZrZiZjfQGhw [email protected]ExploitThird Party Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')[email protected]

Affected Products

ProductVersions
totolink x5000r firmware
9.1.0u.6118_b20201102

CPE

  • cpe:2.3:o:totolink:x5000r_firmware:9.1.0u.6118_b20201102:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
totolink x5000r
All versions

CPE

  • cpe:2.3:h:totolink:x5000r:-:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
totolink a720r firmware
4.1.5cu.470_b20200911

CPE

  • cpe:2.3:o:totolink:a720r_firmware:4.1.5cu.470_b20200911:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
totolink a720r
All versions

CPE

  • cpe:2.3:h:totolink:a720r:-:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

5 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2021-27708
NVD Published Date:
Apr 14, 2021
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2021-27708 Details - Not Deferred