typora 0.9.9.24.6 on MacOS Shared Note path traversal

HistoryDiffrelatejsonxmlCTI

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.3	$0-$5k	0.00

Summaryinfo

A vulnerability was found in typora 0.9.9.24.6 on MacOS. It has been classified as critical. This issue affects some unknown processing of the component Shared Note Handler. The manipulation with the input file:/// leads to path traversal. This vulnerability is documented as CVE-2019-12137. The attack needs to be performed locally. Additionally, an exploit exists.

Detailsinfo

A vulnerability was found in typora 0.9.9.24.6 on MacOS. It has been rated as critical. This issue affects an unknown code block of the component Shared Note Handler. The manipulation with the input value file:/// leads to a path traversal vulnerability. Using CWE to declare the problem leads to CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Typora 0.9.9.24.6 on macOS allows directory traversal, for execution of arbitrary programs, via a file:/// or ../ substring in a shared note.

The bug was discovered 05/16/2019. The weakness was released 05/16/2019. The identification of this vulnerability is CVE-2019-12137 since 05/16/2019. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Technical details as well as a public exploit are known. MITRE ATT&CK project uses the attack technique T1006 for this issue.

The exploit is available at exploit-db.com. It is declared as proof-of-concept.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Exploit-DB (46932). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

typora

Version

0.9.9.24.6

CPE 2.3info

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CPE 2.2info

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CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Path traversal
CWE: CWE-22
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
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Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

05/16/2019 🔍
05/16/2019 +0 days 🔍
05/16/2019 +0 days 🔍
05/17/2019 +1 days 🔍
01/11/2025 +2066 days 🔍

Sourcesinfo

Advisory: 153082
Status: Not defined

CVE: CVE-2019-12137 (🔍)
GCVE (CVE): GCVE-0-2019-12137
GCVE (VulDB): GCVE-100-135161
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 05/17/2019 07:27
Updated: 01/11/2025 02:09
Changes: 05/17/2019 07:27 (53), 06/13/2020 09:50 (1), 09/21/2023 15:15 (4), 01/11/2025 02:09 (25)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.