CVE-2018-6623
CVSS6.5
发布时间 :2018-03-12 17:29:01
修订时间 :2018-04-11 13:33:54
NMP    

[原文]An issue was discovered in Hola 1.79.859. An unprivileged user could modify or overwrite the executable with arbitrary code, which would be executed the next time the service is started. Depending on the user that the service runs as, this could result in privilege escalation. The issue exists because of the SERVICE_ALL_ACCESS access right for the hola_svc and hola_updater services.


[CNNVD]CNNVD数据暂缺。


[机译]译文暂缺.

- CVSS (基础分值)

CVSS分值: 6.5 [中等(MEDIUM)]
机密性影响: PARTIAL [很可能造成信息泄露]
完整性影响: PARTIAL [可能会导致系统文件被修改]
可用性影响: PARTIAL [可能会导致性能下降或中断资源访问]
攻击复杂度: LOW [漏洞利用没有访问限制 ]
攻击向量: NETWORK [攻击者不需要获取内网访问权或本地访问权]
身份认证: SINGLE_INSTANCE [--]

- CWE (弱点类目)

CWE-264 [权限、特权与访问控制]

- CPE (受影响的平台与产品)

产品及版本信息(CPE)暂不可用

- OVAL (用于检测的技术细节)

未找到相关OVAL定义

- 官方数据库链接

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-6623
(官方数据源) MITRE
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2018-6623
(官方数据源) NVD

- 其它链接及资源

http://seclists.org/fulldisclosure/2018/Mar/23
(VENDOR_ADVISORY)  FULLDISC  20180309 Hola VPN 1.79.859 - Insecure service permissions

- 漏洞信息 (F146710)

Hola VPN 1.79.859 Insecure Service Permissions (PacketStormID:F146710)
2018-03-08 00:00:00
Felipe Xavier Oliveira  
exploit
CVE-2018-6623
[点击下载]

Hola VPN version 1.79.859 suffers from an insecure service permission vulnerability.

=====[ Tempest Security Intelligence - ADV-22/2018 ]===

Hola VPN 1.79.859 - Insecure service permissions
-------------------------------------------------------
Author:
- Filipe Xavier Oliveira: < filipe.xavier () tempest.com.br >

=====[ Table of Contents
]=====================================================

* Overview

* Detailed description

* Further attack scenarios

* Timeline of disclosure

* Thanks & Acknowledgements

* References

=====[ Overview
]==============================================================

* System affected : Hola VPN [1]

* Software Version : 1.79.859 .Other versions or models may also be
affected.

* Impact : An unprivileged user could modify or overwrite the executable
with arbitrary code, which would be executed the next time the service
is started. Resulting in privilege escalation.


=====[ Detailed description
]==================================================

An unprivileged user could modify or overwrite the executable with
arbitrary code, which would be executed the next time the service is
started. Depending on the user that the service runs as, this could
result in privilege escalation. The issue exists because of the
SERVICE_ALL_ACCESS access right for the hola_svc and hola_updater services.

C:\SysinternalsSuite>accesschk.exe -uwcqv "Everyone" *
RW hola_svc
SERVICE_ALL_ACCESS
RW hola_updater
SERVICE_ALL_ACCESS

=====[ Further attack scenarios
]==============================================

Services configured to use an executable with weak permissions are
vulnerable to privilege escalation attacks, any user can replace the
original service by the another, causing elevation of privileges to SYSTEM

=====[ Timeline of disclosure
]===============================================

29/01/2018 - Vulnerability reported. Vendor did not respond.
02/05/2018 - CVE assigned [2]
02/05/2018 - Tried to contact vendor again, without success.
03/06/2018 - Advisory publication date.

=====[ Thanks & Acknowledgements
]============================================

- Tempest Security Intelligence / Tempest's Pentest Team [1]

=====[ References
]===========================================================
[1] - http://hola.org/
[2] - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-6623
[3] - http://www.tempest.com.br/

-- 
Filipe Oliveira
Tempest Security Intelligence



    
 

 

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