Deep Link Validation Issue in KakaoTalk Affects User Security
CVE-2023-51219

9.6CRITICAL

Key Information:

Vendor

Kakao

Status
KakaoTalk
Vendor
CVE Published:
3 June 2024

What is CVE-2023-51219?

A vulnerability in KakaoTalk version 10.4.3 allows remote attackers to exploit deep link validation issues, enabling the execution of malicious JavaScript within a WebView. This exploit can lead to a secondary vulnerability where an attacker can trigger another WebView that inadvertently discloses its access token in an HTTP request header. With this access token, attackers can potentially take over user accounts and compromise private chat messages, posing serious privacy and security concerns.

References

https://stulle123.github.io/posts/kakaotalk-account-takeo...
https://news.ycombinator.com/item?id=40776880

CVSS V3.1

Score:
9.6
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

.