CVE-2018-14557

An issue was discovered on Tenda AC7 devices with firmware through V15.03.06.44_CN(AC7), AC9 devices with firmware through V15.03.05.19(6318)_CN(AC9), and AC10 devices with firmware through V15.03.06.23_CN(AC10). A buffer overflow vulnerability exists in the router's web server (httpd). When processing the page parameters for a post request, the value is directly written with sprintf to a local variable placed on the stack, which overrides the return address of the function, a causing buffer overflow.

CVSS v3.0 7.5 HIGH
CVSS v2.0 7.8 HIGH

7.5^/10

CVSS v3.0 : HIGH

Vector : AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

7.8^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:N/I:N/A:C

Exploitability : 10.0 / Impact : 6.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact COMPLETE

References

Link	Resource
https://github.com/zsjevilhex/iot/blob/master/route/tenda/tenda-03/Tenda.md	Exploit Third Party Advisory

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Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:tenda:ac7_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:tenda:ac7:-:*:*:*:*:*:*:*

Configuration 2 (hide)

AND

cpe:2.3:o:tenda:ac9_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:tenda:ac9:-:*:*:*:*:*:*:*

Configuration 3 (hide)

AND

cpe:2.3:o:tenda:ac10_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:tenda:ac10:-:*:*:*:*:*:*:*

Information

Published : 2019-04-25 13:29

Updated : 2019-05-02 07:17

NVD link : CVE-2018-14557

Mitre link : CVE-2018-14557

JSON object : View

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

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Products Affected

tenda

ac10_firmware
ac10
ac9
ac7_firmware
ac9_firmware
ac7

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