BlogEngine.NET up to 3.3.7.0 Incomplete Fix CVE-2019-6714 /api/upload path traversal

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7.4	$0-$5k	0.00

Summaryinfo

A vulnerability has been found in BlogEngine.NET up to 3.3.7.0 and classified as critical. The impacted element is an unknown function of the file /api/upload of the component Incomplete Fix CVE-2019-6714. This manipulation causes path traversal. This vulnerability is registered as CVE-2019-10719. Remote exploitation of the attack is possible. Furthermore, an exploit is available.

Detailsinfo

A vulnerability was found in BlogEngine.NET up to 3.3.7.0. It has been declared as critical. Affected by this vulnerability is an unknown part of the file /api/upload of the component Incomplete Fix CVE-2019-6714. The manipulation with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

BlogEngine.NET 3.3.7.0 and earlier allows Directory Traversal and Remote Code Execution because file creation is mishandled, related to /api/upload and BlogEngine.NET/AppCode/Api/UploadController.cs. NOTE: this issue exists because of an incomplete fix for CVE-2019-6714.

The weakness was published 06/21/2019 as not defined mailinglist post (Full-Disclosure). The advisory is shared at seclists.org. This vulnerability is known as CVE-2019-10719 since 04/02/2019. The exploitation appears to be easy. The attack can be launched remotely. A single authentication is necessary for exploitation. Technical details and also a public exploit are known. MITRE ATT&CK project uses the attack technique T1006 for this issue.

It is possible to download the exploit at packetstormsecurity.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.

Similar entry is available at VDB-136826. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

BlogEngine.NET

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.4

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
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: No
Local: No
Remote: Yes

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

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

04/02/2019 🔍
06/21/2019 +80 days 🔍
06/22/2019 +1 days 🔍
07/02/2024 +1837 days 🔍

Sourcesinfo

Advisory: 153347
Status: Not defined

CVE: CVE-2019-10719 (🔍)
GCVE (CVE): GCVE-0-2019-10719
GCVE (VulDB): GCVE-100-136825
scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 06/22/2019 07:49
Updated: 07/02/2024 12:17
Changes: 06/22/2019 07:49 (39), 06/26/2020 16:57 (17), 10/07/2023 14:11 (3), 07/02/2024 12:17 (22)
Complete: 🔍
Cache ID: 216::103

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