ID CVE-2017-13209
Summary In the ServiceManager::add function in the hardware service manager, there is an insecure permissions check based on the PID of the caller which could allow an application or service to replace a HAL service with its own service. This could lead to a local elevation of privilege enabling code execution as a privileged process with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android. Versions: 8.0, 8.1. Android ID: A-68217907.
References
Vulnerable Configurations
  • Google Android 8.0
    cpe:2.3:o:google:android:8.0
  • cpe:2.3:o:google:android:8.1
    cpe:2.3:o:google:android:8.1
CVSS
Base: 7.2
Impact:
Exploitability:
CWE CWE-275
CAPEC
  • Accessing, Modifying or Executing Executable Files
    An attack of this type exploits a system's configuration that allows an attacker to either directly access an executable file, for example through shell access; or in a possible worst case allows an attacker to upload a file and then execute it. Web servers, ftp servers, and message oriented middleware systems which have many integration points are particularly vulnerable, because both the programmers and the administrators must be in synch regarding the interfaces and the correct privileges for each interface.
  • Leverage Executable Code in Non-Executable Files
    An attack of this type exploits a system's trust in configuration and resource files, when the executable loads the resource (such as an image file or configuration file) the attacker has modified the file to either execute malicious code directly or manipulate the target process (e.g. application server) to execute based on the malicious configuration parameters. Since systems are increasingly interrelated mashing up resources from local and remote sources the possibility of this attack occurring is high. The attack can be directed at a client system, such as causing buffer overrun through loading seemingly benign image files, as in Microsoft Security Bulletin MS04-028 where specially crafted JPEG files could cause a buffer overrun once loaded into the browser. Another example targets clients reading pdf files. In this case the attacker simply appends javascript to the end of a legitimate url for a pdf (http://www.gnucitizen.org/blog/danger-danger-danger/) http://path/to/pdf/file.pdf#whatever_name_you_want=javascript:your_code_here The client assumes that they are reading a pdf, but the attacker has modified the resource and loaded executable javascript into the client's browser process. The attack can also target server processes. The attacker edits the resource or configuration file, for example a web.xml file used to configure security permissions for a J2EE app server, adding role name "public" grants all users with the public role the ability to use the administration functionality. The server trusts its configuration file to be correct, but when they are manipulated, the attacker gains full control.
exploit-db via4
description Android - Hardware Service Manager Arbitrary Service Replacement due to getpidcon. CVE-2017-13209. Dos exploit for Android platform
file exploits/android/dos/43513.txt
id EDB-ID:43513
last seen 2018-01-24
modified 2018-01-11
platform android
port
published 2018-01-11
reporter Exploit-DB
source https://www.exploit-db.com/download/43513/
title Android - Hardware Service Manager Arbitrary Service Replacement due to getpidcon
type dos
refmap via4
bid 102415
confirm https://source.android.com/security/bulletin/2018-01-01
sectrack 1040106
Last major update 12-01-2018 - 18:29
Published 12-01-2018 - 18:29
Last modified 02-02-2018 - 12:53
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