contus-video-comments Plugin 1.0 on WordPress File Upload JPG File path traversal
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
7.7 | $0-$5k | 0.00 |
A vulnerability was found in contus-video-comments Plugin 1.0 on WordPress (WordPress Plugin). It has been declared as critical. This vulnerability affects an unknown code block of the component File Upload. The manipulation as part of a JPG File leads to a path traversal vulnerability. The CWE definition for the vulnerability is CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:
Unauthenticated remote .jpg file upload in contus-video-comments v1.0 wordpress plugin
The bug was discovered 06/15/2016. The weakness was disclosed 10/06/2016 by Larry W. Cashdollar (Website). The advisory is available at securityfocus.com. This vulnerability was named CVE-2016-1000112 since 07/20/2016. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are unknown but a public exploit is available. This vulnerability is assigned to T1006 by the MITRE ATT&CK project. Responsible for the vulnerability is the following code:
if(isset($GLOBALS["HTTP_RAW_POST_DATA"])){ $jpg = $GLOBALS["HTTP_RAW_POST_DATA"]; $filename = "images/". $_GET["id"]. ".jpg"; file_put_contents($filename, $jpg); } else{ echo "Encoded JPEG information not received."; }
It is possible to download the exploit at vapid.dhs.org. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 113 days. During that time the estimated underground price was around $0-$5k. The code used by the exploit is:
curl --data @image.jpg "http://wp-site/wp-content/plugins/contus-video-comments/save.php?id=../image"
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
Product
Type
Name
Version
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 8.2VulDB Meta Temp Score: 8.0
VulDB Base Score: 7.3
VulDB Temp Score: 6.9
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 9.1
NVD Vector: 🔍
CVSSv2
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Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔍
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VulDB Reliability: 🔍
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Exploiting
Class: Path traversalCWE: CWE-22
CAPEC: 🔍
ATT&CK: 🔍
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 Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔍
Timeline
06/15/2016 🔍06/15/2016 🔍
07/20/2016 🔍
10/06/2016 🔍
10/06/2016 🔍
10/07/2016 🔍
07/09/2019 🔍
Sources
Advisory: securityfocus.com⛔Researcher: Larry W. Cashdollar
Status: Not defined
CVE: CVE-2016-1000112 (🔍)
SecurityFocus: 93967 - Wordpress contus-video-comments Plugin 'save.php' Arbitrary File Upload Vulnerability
scip Labs: https://www.scip.ch/en/?labs.20161013
Entry
Created: 10/07/2016 13:08Updated: 07/09/2019 20:26
Changes: 10/07/2016 13:08 (63), 07/09/2019 20:26 (6)
Complete: 🔍
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