VDB-107371 · CVE-2017-14981 · GCVE-0-2017-14981

ATutor up to 2.2.2 edit_feed.php cross site scripting

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.
4.2	$0-$5k	0.00

Summaryinfo

A vulnerability was found in ATutor up to 2.2.2. It has been classified as problematic. Affected by this vulnerability is an unknown functionality of the file /mods/_standard/rss_feeds/edit_feed.php. This manipulation causes cross site scripting. This vulnerability is handled as CVE-2017-14981. The attack can be initiated remotely. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as problematic was found in ATutor up to 2.2.2 (Learning Management Software). Affected by this vulnerability is an unknown code block of the file /mods/_standard/rss_feeds/edit_feed.php. The manipulation with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. As an impact it is known to affect integrity. The summary by CVE is:

Cross-Site Scripting (XSS) was discovered in ATutor before 2.2.3. The vulnerability exists due to insufficient filtration of data (url in /mods/_standard/rss_feeds/edit_feed.php). An attacker could inject arbitrary HTML and script code into a browser in the context of the vulnerable website.

The bug was discovered 09/30/2017. The weakness was released 10/03/2017 (GitHub Repository). It is possible to read the advisory at github.com. This vulnerability is known as CVE-2017-14981 since 10/01/2017. The attack can be launched remotely. The requirement for exploitation is a single authentication. 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 attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 2 days. During that time the estimated underground price was around $0-$5k. By approaching the search of inurl:mods/_standard/rss_feeds/edit_feed.php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 2.2.3 eliminates this vulnerability.

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

Productinfo

Type

Learning Management Software

Name

ATutor

Version

License

free

Website

Product: https://github.com/atutor/ATutor/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.2

VulDB Base Score: 3.5
VulDB Temp Score: 3.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.4
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined
Google Hack: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: ATutor 2.2.3
Patch: github.com

Timelineinfo

09/30/2017 🔍
10/01/2017 +1 days 🔍
10/02/2017 +1 days 🔍
10/03/2017 +1 days 🔍
10/03/2017 +0 days 🔍
12/30/2022 +1914 days 🔍

Sourcesinfo

Product: github.com

Advisory: 9292360c8b3898d0990983269f110cef21729090
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-14981 (🔍)
GCVE (CVE): GCVE-0-2017-14981
GCVE (VulDB): GCVE-100-107371

Entryinfo

Created: 10/03/2017 10:59
Updated: 12/30/2022 15:02
Changes: 10/03/2017 10:59 (58), 05/26/2020 20:37 (2), 12/30/2022 15:02 (5)
Complete: 🔍
Cache ID: 216::103