Vulnerability Details : CVE-2021-27708
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.
Products affected by CVE-2021-27708
- cpe:2.3:o:totolink:x5000r_firmware:9.1.0u.6118_b20201102:*:*:*:*:*:*:*
- cpe:2.3:o:totolink:a720r_firmware:4.1.5cu.470_b20200911:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-27708
3.69%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 92 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-27708
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
10.0
|
HIGH | AV:N/AC:L/Au:N/C:C/I:C/A:C |
10.0
|
10.0
|
NIST | |
|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2021-27708
-
The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-27708
-
https://hackmd.io/mDgIBvoxSPCZrZiZjfQGhw
totolink vulnerability - HackMDExploit;Third Party Advisory
-
https://hackmd.io/7FtB06f-SJ-SCfkMYcXYxA
totolink vulnerability - HackMDExploit;Third Party Advisory
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