CVE-2020-13389 Detail

Current Description

An issue was discovered on Tenda AC6 V1.0 V15.03.05.19_multi_TD01, AC9 V1.0 V15.03.05.19(6318)_CN, AC9 V3.0 V15.03.06.42_multi, AC15 V1.0 V15.03.05.19_multi_TD01, and AC18 V15.03.05.19(6318_)_CN devices. There is a buffer overflow vulnerability in the router’s web server — httpd. While processing the /goform/openSchedWifi schedStartTime and schedEndTime parameters for a POST request, a value is directly used in a strcpy to a local variable placed on the stack, which overwrites the return address of a function. An attacker can construct a payload to carry out arbitrary code execution attacks.

Source:  MITRE
View Analysis Description

Analysis Description

An issue was discovered on Tenda AC6 V1.0 V15.03.05.19_multi_TD01, AC9 V1.0 V15.03.05.19(6318)_CN, AC9 V3.0 V15.03.06.42_multi, AC15 V1.0 V15.03.05.19_multi_TD01, and AC18 V15.03.05.19(6318_)_CN devices. There is a buffer overflow vulnerability in the router’s web server — httpd. While processing the /goform/openSchedWifi schedStartTime and schedEndTime parameters for a POST request, a value is directly used in a strcpy to a local variable placed on the stack, which overwrites the return address of a function. An attacker can construct a payload to carry out arbitrary code execution attacks.

Source:  MITRE

Severity

CVSS 3.x Severity and Metrics:

CVSS 2.0 Severity and Metrics:

References to Advisories, Solutions, and Tools

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Weakness Enumeration

CWE-ID CWE Name Source
CWE-120 Buffer Copy without Checking Size of Input (‘Classic Buffer Overflow’) NIST  

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
Configuration 2 ( hide )
Configuration 3 ( hide )
Configuration 4 ( hide )
Configuration 5 ( hide )

Change History

2 change records found – show changes

Initial Analysis5/27/2020 4:27:38 PM

Action Type Old Value New Value
Added CPE Configuration
AND
     OR
          *cpe:2.3:o:tendacn:ac15_firmware:v15.03.05.19_multi_td01:*:*:*:*:*:*:*
     OR
          cpe:2.3:h:tendacn:ac15:1.0:*:*:*:*:*:*:*
Added CPE Configuration
AND
     OR
          *cpe:2.3:o:tendacn:ac18_firmware:v15.03.05.19(6318):*:*:*:*:*:*:*
     OR
          cpe:2.3:h:tendacn:ac18:-:*:*:*:*:*:*:*
Added CPE Configuration
AND
     OR
          *cpe:2.3:o:tendacn:ac6_firmware:v15.03.05.19_multi_td01:*:*:*:*:*:*:*
     OR
          cpe:2.3:h:tendacn:ac6:1.0:*:*:*:*:*:*:*
Added CPE Configuration
AND
     OR
          *cpe:2.3:o:tendacn:ac9_firmware:v15.03.05.19(6318):*:*:*:*:*:*:*
     OR
          cpe:2.3:h:tendacn:ac9:1.0:*:*:*:*:*:*:*
Added CPE Configuration
AND
     OR
          *cpe:2.3:o:tendacn:ac9_firmware:v15.03.06.42_multi:*:*:*:*:*:*:*
     OR
          cpe:2.3:h:tendacn:ac9:3.0:*:*:*:*:*:*:*
Added CVSS V2
NIST (AV:N/AC:L/Au:N/C:P/I:P/A:P)
Added CVSS V3.1
NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Added CWE
NIST CWE-120
Changed Reference Type
https://joel-malwarebenchmark.github.io No Types Assigned
https://joel-malwarebenchmark.github.io Exploit, Third Party Advisory
Changed Reference Type
https://joel-malwarebenchmark.github.io/blog/2020/04/28/cve-2020-13389-Tenda-vulnerability/ No Types Assigned
https://joel-malwarebenchmark.github.io/blog/2020/04/28/cve-2020-13389-Tenda-vulnerability/ Third Party Advisory

CVE Modified by MITRE5/26/2020 5:15:10 PM

Action Type Old Value New Value
Added Reference
https://joel-malwarebenchmark.github.io/blog/2020/04/28/cve-2020-13389-Tenda-vulnerability/ [No Types Assigned]

Quick Info

CVE Dictionary Entry:
CVE-2020-13389
NVD Published Date:
05/22/2020
NVD Last Modified:
05/27/2020