PT-2023-18866 · Typora · Typora

Cursered + 1 · Published 2023-08-18 · Updated 2023-08-24 · CVE-2023-2316

Positive Technologies (AI Summary)

CVSS v3.1

7.4

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Typora versions prior to 1.6.7

Description The issue is related to improper path handling, which allows a crafted webpage to access local files and exfiltrate them to remote web servers via "typora://app/". This can be exploited if a user opens a malicious markdown file in Typora or copies text from a malicious webpage and pastes it into Typora.

Recommendations For versions prior to 1.6.7, update to version 1.6.7 or later to resolve the issue. As a temporary workaround, consider avoiding the use of the "typora://app/" protocol handler until a patch is applied. Additionally, users should be cautious when opening markdown files from untrusted sources or copying text from malicious webpages to minimize the risk of exploitation.

Exploit

Fix

Path traversal

Weakness Enumeration

CWE-22

Related Identifiers

CVE-2023-2316

Affected Products

Typora

References · 7

• 🔥 https://starlabs.sg/advisories/23/23-2316 · Exploit
• https://support.typora.io/What\'s-New-1.6 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-2316 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-2316 · Security Note
• https://twitter.com/CVEnew/status/1692776753406591142 · Twitter Post
• https://t.me/cibsecurity/68859 · Telegram Post
• https://twitter.com/geekphane/status/1693859652935524537 · Twitter Post