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Samsung Mobile Android FotaAgent Arbitrary File Creation

Samsung Mobile Android FotaAgent Arbitrary File Creation
Posted Sep 25, 2019
Authored by flanker

A vulnerability in Samsung Mobile Android FotaAgent allows creating privileged files without proper permission from an unprivileged process.

tags | advisory
advisories | CVE-2019-14783
SHA-256 | e3810d2e688f9fc069b61a91ba1ba6ef53afbcceddaff8c8bf92c5f1df2310d7

Samsung Mobile Android FotaAgent Arbitrary File Creation

Change Mirror Download
[CVE-2019-14783] Arbitrary file create with system-app privilege in Samsung Mobile Android FotaAgent Component


Software:
--------
Samsung Mobile Android FotaAgent Component


Description:
----------
A vulnerability in FotaAgent allows creating privileged files without proper permission from unprivileged process. The patch adds proper permission check on FotaAgent to address the vulnerability. This issue is reported to & confirmed and patched by Samsung Mobile Security Rewards Program under case ID 101825.


Patched version:
------------
- Samsung Mobile Android N(7.x), O(8.x), P(9.0) with SMR-AUG-2019 patch level and after


Impact:
-------
A successful local attack can create arbitrary file with system privilege.


Solution:
---------
Update the device to at lease SMR-AUG-2019 patch level.


Credit:
-------
Discovered by Qidan He (a.k.a Edward Flanker, @flanker_hqd). Detailed about this vulnerability will be released shortly after confirmation from Samsung Mobile for responsible disclosure.


------------------
Sincerely
Qidan (a.k.a Flanker)

Website: https://blog.flanker017.me


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