Gjoko KrsticZSL-2014-5171Huawei Technologies eSpace Meeting Service 1.0.0.23 Local Privilege Escalation
6.6 Medium
CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
PARTIAL
AV:L/AC:M/Au:N/C:C/I:C/A:P
7 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
0.001 Low
EPSS
Percentile
27.8%
Title: Huawei Technologies eSpace Meeting Service 1.0.0.23 Local Privilege Escalation
Advisory ID: ZSL-2014-5171
Type: Local
Impact: Privilege Escalation
Risk: (3/5)
Release Date: 10.03.2014
Summary
Huawei’s eSpace Meeting solution fully meets the needs of enterprise customers for an integrated daily collaboration system by integrating the conference server, conference video terminal, conference user authorization, and teleconference.
Description
The application is vulnerable to an elevation of privileges vulnerability which can be used by a simple user that can change the executable file with a binary of choice. The vulnerability exist due to the improper permissions, with the ‘F’ flag (full) for the ‘Users’ group, for the ‘eMservice.exe’ binary file. The service is installed by default to start on system boot with LocalSystem privileges. Attackers can replace the binary with their rootkit, and on reboot they get SYSTEM privileges.
Vendor
Huawei Technologies Co., Ltd. - <http://www.huawei.com>
Affected Version
1.0.0.23 (V100R001C03SPC201B050)
Tested On
Microsoft Windows 7 Professional SP1 (EN)
Vendor Status
[18.01.2014] Vulnerability discovered.
[20.01.2014] Vendor contacted with sent detailed info.
[20.01.2014] Vendor responds, analyzing the issue.
[22.01.2014] Vendor confirms the vulnerability.
[27.01.2014] Working with the vendor.
[08.02.2014] Asked vendor for status update.
[10.02.2014] Vendor responds with scheduled patch release date.
[07.03.2014] Vendor releases version V100R001C03SPC202 to address this issue.
[10.03.2014] Coordinated public security advisory released.
PoC
Credits
Vulnerability discovered by Gjoko Krstic - <[email protected]>
References
[1] <http://www.huawei.com/en/security/psirt/security-bulletins/security-advisories/hw-329170.htm>
[2] <http://cxsecurity.com/issue/WLB-2014030081>
[3] <http://packetstormsecurity.com/files/125638>
[4] <http://secunia.com/advisories/57225/>
[5] <http://www.securityfocus.com/bid/66107>
[6] <http://osvdb.org/show/osvdb/104323>
[7] <http://www.exploit-db.com/exploits/32205/>
[8] <https://vulners.com/cve/CVE-2014-3222>
[9] <https://nvd.nist.gov/vuln/detail/CVE-2014-3222>
Changelog
[10.03.2014] - Initial release
[11.03.2014] - Added reference [2], [3], [4] and [5]
[12.03.2014] - Added reference [6] and [7]
[21.10.2021] - Added reference [8] and [9]
Contact
Zero Science Lab
Web: <http://www.zeroscience.mk>
e-mail: [email protected]
<html><body><p>Huawei Technologies eSpace Meeting Service 1.0.0.23 Local Privilege Escalation
Vendor: Huawei Technologies Co., Ltd.
Product web page: http://www.huawei.com
Affected version: 1.0.0.23 (V100R001C03SPC201B050)
Summary: Huawei's eSpace Meeting solution fully meets the needs of enterprise
customers for an integrated daily collaboration system by integrating the
conference server, conference video terminal, conference user authorization,
and teleconference.
Desc: The application is vulnerable to an elevation of privileges vulnerability
which can be used by a simple user that can change the executable file with a
binary of choice. The vulnerability exist due to the improper permissions, with
the 'F' flag (full) for the 'Users' group, for the 'eMservice.exe' binary file.
The service is installed by default to start on system boot with LocalSystem
privileges. Attackers can replace the binary with their rootkit, and on reboot
they get SYSTEM privileges.
Tested on: Microsoft Windows 7 Professional SP1 (EN)
Vulnerbility discovered by Gjoko 'LiquidWorm' Krstic
@zeroscience
Advisory ID: ZSL-2014-5171
Advisory URL: http://www.zeroscience.mk/en/vulnerabilities/ZSL-2014-5171.php
Huawei ID: Huawei-SA-20140310-01
Huawei Advisory: http://www.huawei.com/en/security/psirt/security-bulletins/security-advisories/hw-329170.htm
18.01.2014
------------------------------------
C:\>sc qc eSpaceMeeting
[SC] QueryServiceConfig SUCCESS
SERVICE_NAME: eSpaceMeeting
TYPE : 110 WIN32_OWN_PROCESS (interactive)
START_TYPE : 2 AUTO_START
ERROR_CONTROL : 1 NORMAL
BINARY_PATH_NAME : C:\ProgramData\eSpaceMeeting\eMservice.exe
LOAD_ORDER_GROUP :
TAG : 0
DISPLAY_NAME : eSpaceMeeting
DEPENDENCIES :
SERVICE_START_NAME : LocalSystem
C:\>icacls ProgramData\eSpaceMeeting\eMservice.exe
ProgramData\eSpaceMeeting\eMservice.exe BUILTIN\Users:(I)(F)
NT AUTHORITY\SYSTEM:(I)(F)
BUILTIN\Administrators:(I)(F)
Successfully processed 1 files; Failed processing 0 files
C:\>
------------------------------------
</p></body></html>Related
6.6 Medium
CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
PARTIAL
AV:L/AC:M/Au:N/C:C/I:C/A:P
7 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
0.001 Low
EPSS
Percentile
27.8%