VDB-98541 · CVE-2017-2645 · BID 96982

Moodle 3.x Attachment 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.
5.2$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Moodle 3.x. This vulnerability affects unknown code of the component Attachment Handler. Performing a manipulation results in cross site scripting. This vulnerability is identified as CVE-2017-2645. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability classified as problematic has been found in Moodle 3.x (Learning Management Software). This affects some unknown functionality of the component Attachment Handler. The manipulation with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as 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. This is going to have an impact on integrity. The summary by CVE is:

In Moodle 3.x, XSS can occur via attachments to evidence of prior learning.

The bug was discovered 03/20/2017. The weakness was released 03/26/2017 (Website). The advisory is shared at moodle.org. This vulnerability is uniquely identified as CVE-2017-2645 since 12/01/2016. 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. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 11/15/2022). MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 6 days. During that time the estimated underground price was around $5k-$25k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 276553 (Fedora Security Update for moodle (FEDORA-2017-0196511d58)).

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 SecurityFocus (BID 96982†). Entries connected to this vulnerability are available at VDB-98539 and VDB-98540. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.2
VulDB Meta Temp Score: 5.2

VulDB Base Score: 4.3
VulDB Temp Score: 4.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.1
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

OpenVAS ID: 867773
OpenVAS Name: Fedora Update for moodle FEDORA-2017-0fcaf52f1a
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/01/2016 🔍
03/20/2017 +109 days 🔍
03/20/2017 +0 days 🔍
03/26/2017 +6 days 🔍
03/26/2017 +0 days 🔍
03/27/2017 +1 days 🔍
11/15/2022 +2059 days 🔍

Sourcesinfo

Product: moodle.org

Advisory: moodle.org
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-2645 (🔍)
GCVE (CVE): GCVE-0-2017-2645
GCVE (VulDB): GCVE-100-98541
SecurityFocus: 96982 - Moodle CVE-2017-2645 HTML Injection Vulnerability
OSVDB: - CVE-2017-2645 - Moodle - Cross-Site Scripting Issue
SecurityTracker: 1038174

See also: 🔍

Entryinfo

Created: 03/27/2017 08:56
Updated: 11/15/2022 11:54
Changes: 03/27/2017 08:56 (65), 09/14/2020 10:54 (5), 11/15/2022 11:54 (2)
Complete: 🔍
Cache ID: 216:813:103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you want to use VulDB in your project?

Use the official API to access entries easily!