Vulnerability CVE-2018-18320
Published: 2018-10-15

Description:
** DISPUTED ** An issue was discovered in the Merlin.PHP component 0.6.6 for Asuswrt-Merlin devices. An attacker can execute arbitrary commands because exec.php has a popen call. NOTE: the vendor indicates that Merlin.PHP is designed only for use on a trusted intranet network, and intentionally allows remote code execution.

Type:

CWE-20

 (Improper Input Validation)

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.5/10
6.4/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Asuswrt-merlin project -> Rt-ac1900 firmware 
Asuswrt-merlin project -> Rt-ac2900 firmware 
Asuswrt-merlin project -> Rt-ac3100 firmware 
Asuswrt-merlin project -> Rt-ac3200 firmware 
Asuswrt-merlin project -> Rt-ac5300 firmware 
Asuswrt-merlin project -> Rt-ac56u firmware 
Asuswrt-merlin project -> Rt-ac66u b1 firmware 
Asuswrt-merlin project -> Rt-ac68p firmware 
Asuswrt-merlin project -> Rt-ac68u firmware 
Asuswrt-merlin project -> Rt-ac68uf firmware 
Asuswrt-merlin project -> Rt-ac86u firmware 
Asuswrt-merlin project -> Rt-ac87 firmware 
Asuswrt-merlin project -> Rt-ac88u firmware 
Asuswrt-merlin project -> Rt ac1900p firmware 

 References:
http://blog.51cto.com/010bjsoft/2298828
https://github.com/qoli/Merlin.PHP/issues/26
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