PT-2019-12304 · Tencent · Wechat

Hong Nhat Pham · Published 2019-05-14 · Updated 2023-03-01 · CVE-2019-11419

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions WeChat application through 7.0.3 for Android

Description The issue allows attackers to cause a denial of service, resulting in an application crash. This is achieved by replacing an emoji file under the /sdcard/tencent/MicroMsg directory with a crafted .wxgf file. The content of this replacement file must be derived from the phone's IMEI. The application crash occurs when a message containing the replaced emoji is received.

Recommendations For WeChat application version 7.0.3 and earlier, consider removing or restricting access to the crafted .wxgf file until a patch is available. As a temporary workaround, avoid using the replaced emoji in messages to prevent the application crash.

Exploit

Fix

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2019-11419

Affected Products

Wechat

References · 5

• 🔥 https://awakened1712.github.io/hacking/hacking-wechat-dos · Exploit
• 🔥 https://exploit-db.com/exploits/46853 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2019-11419 · Security Note
• https://osv.dev/vulnerability/CVE-2019-11419 · Vendor Advisory
• http://packetstormsecurity.com/files/152947/WeChat-7.0.4-Denial-Of-Service.html · Note