CVE-2017-8412

An issue was discovered on D-Link DCS-1100 and DCS-1130 devices. The device has a custom binary called mp4ts under the /var/www/video folder. It seems that this binary dumps the HTTP VERB in the system logs. As a part of doing that it retrieves the HTTP VERB sent by the user and uses a vulnerable sprintf function at address 0x0000C3D4 in the function sub_C210 to copy the value into a string and then into a log file. Since there is no bounds check being performed on the environment variable at address 0x0000C360 this results in a stack overflow and overwrites the PC register allowing an attacker to execute buffer overflow or even a command injection attack.

CVSS v3.0 8.8 HIGH
CVSS v2.0 5.8 MEDIUM

8.8^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

5.8^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 6.5 / Impact : 6.4

Access Vector ADJACENT_NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
http://packetstormsecurity.com/files/153226/Dlink-DCS-1130-Command-Injection-CSRF-Stack-Overflow.html	Third Party Advisory VDB Entry
https://github.com/ethanhunnt/IoT_vulnerabilities/blob/master/Dlink_DCS_1130_security.pdf	Not Applicable Third Party Advisory
https://seclists.org/bugtraq/2019/Jun/8	Mailing List Third Party Advisory

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Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:dlink:dcs-1130_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:dlink:dcs-1130:-:*:*:*:*:*:*:*

Configuration 2 (hide)

AND

cpe:2.3:o:dlink:dcs-1100_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:dlink:dcs-1100:-:*:*:*:*:*:*:*

Information

Published : 2019-07-02 14:15

Updated : 2021-04-26 10:00

NVD link : CVE-2017-8412

Mitre link : CVE-2017-8412

JSON object : View

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

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Products Affected

dlink

dcs-1130_firmware
dcs-1100_firmware
dcs-1100
dcs-1130

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