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cve[email protected]CVE-2017-8333
HistoryJun 18, 2019 - 8:15 p.m.

CVE-2017-8333

2019-06-1820:15:11
CWE-77
web.nvd.nist.gov
49
cve
2017
8333
command injection
vulnerability
securifi almond
al-r096
firmware
device
security
nvd

8.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

9 High

AI Score

Confidence

High

9 High

CVSS2

Access Vector

Access Complexity

Authentication

SINGLE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

0.011 Low

EPSS

Percentile

84.3%

An issue was discovered on Securifi Almond, Almond+, and Almond 2015 devices with firmware AL-R096. The device provides a user with the capability of adding new routes to the device. It seems that the POST parameters passed in this request to set up routes on the device can be set in such a way that would result in passing commands to a “popen” API in the function and thus result in command injection on the device. If the firmware version AL-R096 is dissected using binwalk tool, we obtain a cpio-root archive which contains the filesystem set up on the device that contains all the binaries. The binary “goahead” is the one that has the vulnerable function that receives the values sent by the POST request. If we open this binary in IDA-pro we will notice that this follows a MIPS little endian format. The function sub_00420F38 in IDA pro is identified to be receiving the values sent in the POST request and the value set in POST parameter “dest” is extracted at address 0x00420FC4. The POST parameter "dest is concatenated in a route add command and this is passed to a “popen” function at address 0x00421220. This allows an attacker to provide the payload of his/her choice and finally take control of the device.

Affected configurations

NVD
Node
securifialmond_2015Match-
AND
securifialmond_2015_firmwareMatchal-r096
Node
securifialmond\+Match-
AND
securifialmond\+firmwareMatchal-r096
Node
securifialmondMatch-
AND
securifialmond_firmwareMatchal-r096

8.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

9 High

AI Score

Confidence

High

9 High

CVSS2

Access Vector

Access Complexity

Authentication

SINGLE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

0.011 Low

EPSS

Percentile

84.3%

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