typora 0.9.9.21.1 file: URL HREF input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.5$0-$5k0.00

Summaryinfo

A vulnerability was found in typora 0.9.9.21.1. It has been rated as critical. The impacted element is an unknown function of the component file: URL Handler. Performing a manipulation of the argument HREF as part of Attribute results in input validation. This vulnerability is cataloged as CVE-2019-12172. The attack must be initiated from a local position. There is no exploit available.

Detailsinfo

A vulnerability, which was classified as critical, was found in typora 0.9.9.21.1. This affects an unknown function of the component file: URL Handler. The manipulation of the argument HREF as part of a Attribute leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Typora 0.9.9.21.1 (1913) allows arbitrary code execution via a modified file: URL syntax in the HREF attribute of an AREA element, as demonstrated by file:\\\ on macOS or Linux, or file://C| on Windows. This is different from CVE-2019-12137.

The bug was discovered 01/27/2019. The weakness was shared 05/17/2019. This vulnerability is uniquely identified as CVE-2019-12172 since 05/17/2019. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 110 days. During that time the estimated underground price was around $0-$5k.

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

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

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

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/27/2019 🔍
05/17/2019 +110 days 🔍
05/17/2019 +0 days 🔍
05/18/2019 +1 days 🔍
09/21/2023 +1587 days 🔍

Sourcesinfo

Advisory: 2166
Status: Not defined

CVE: CVE-2019-12172 (🔍)
GCVE (CVE): GCVE-0-2019-12172
GCVE (VulDB): GCVE-100-135219

Entryinfo

Created: 05/18/2019 09:30
Updated: 09/21/2023 23:31
Changes: 05/18/2019 09:30 (54), 06/13/2020 16:43 (1), 09/21/2023 23:31 (4)
Complete: 🔍
Cache ID: 216:4FE:103

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