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MitreCVE-2019-12147

HistoryOct 22, 2019 - 4:15 p.m.

CVE-2019-12147

2019-10-2216:15:10

CWE-88

mitre

web.nvd.nist.gov

sangoma

session border controller

sbc

cve-2019-12147

vulnerability

argument injection

remote code execution

unauthenticated user

system compromise

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

AI Score

9.2

Confidence

High

EPSS

0.114

Percentile

95.2%

JSON

The Sangoma Session Border Controller (SBC) 2.3.23-119 GA web interface is vulnerable to Argument Injection via special characters in the username field. Upon successful exploitation, a remote unauthenticated user can create a local system user with sudo privileges, and use that user to login to the system (either via the web interface or via SSH) to achieve complete compromise of the device. This affects /var/webconfig/gui/Webconfig.inc.php and /usr/local/sng/bin/sng-user-mgmt.

Affected configurations

Nvd

Node

sangomasession_border_controller_firmwareMatch2.3.23-119-ga

AND

sangomasession_border_controllerMatch-

VendorProductVersionCPE
sangomasession_border_controller_firmware2.3.23-119-gacpe:2.3:o:sangoma:session_border_controller_firmware:2.3.23-119-ga:*:*:*:*:*:*:*
sangomasession_border_controller-cpe:2.3:h:sangoma:session_border_controller:-:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
sangoma	session_border_controller_firmware	2.3.23-119-ga	cpe:2.3:o:sangoma:session_border_controller_firmware:2.3.23-119-ga:::::::*
sangoma	session_border_controller	-	cpe:2.3:h:sangoma:session_border_controller:-:::::::*

References

packetstormsecurity.com/files/154914/Sangoma-SBC-2.3.23-119-GA-Unauthenticated-User-Creation.html

seclists.org/fulldisclosure/2019/Oct/40

blog.appsecco.com

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

AI Score

9.2

Confidence

High

EPSS

0.114

Percentile

95.2%

JSON

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