NoScript Classic up to 5.1.8.6 Tor Browser Content-Type 7pk security

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 (≈)
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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.
7.9$0-$5k0.00

Summaryinfo

A vulnerability was found in NoScript Classic up to 5.1.8.6. It has been rated as critical. Affected by this issue is some unknown functionality of the component Tor Browser. The manipulation as part of Content-Type leads to 7pk security. This vulnerability is handled as CVE-2018-16983. The attack may be launched remotely. There is no exploit available. It is recommended to upgrade the affected component. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Detailsinfo

A vulnerability was found in NoScript Classic up to 5.1.8.6. It has been declared as critical. Affected by this vulnerability is an unknown function of the component Tor Browser. The manipulation as part of a Content-Type leads to a 7pk security vulnerability. The CWE definition for the vulnerability is CWE-254. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

NoScript Classic before 5.1.8.7, as used in Tor Browser 7.x and other products, allows attackers to bypass script blocking via the text/html;/json Content-Type value.

The bug was discovered 09/11/2018. The weakness was released 09/13/2018 (Website). It is possible to read the advisory at noscript.net. This vulnerability is known as CVE-2018-16983 since 09/12/2018. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1211 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. The vulnerability scanner Nessus provides a plugin with the ID 117813 (Fedora 27 : mozilla-noscript (2018-09c51bbcec)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l.

Upgrading to version 5.1.8.7 eliminates this vulnerability. A possible mitigation has been published 3 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (117813). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.0
VulDB Meta Temp Score: 7.9

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

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: 7pk security
CWE: CWE-254
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 117813
Nessus Name: Fedora 27 : mozilla-noscript (2018-09c51bbcec)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: NoScript Classic 5.1.8.7

Timelineinfo

09/11/2018 🔍
09/12/2018 +0 days 🔍
09/13/2018 +1 days 🔍
09/13/2018 +0 days 🔍
09/13/2018 +0 days 🔍
09/27/2018 +14 days 🔍
09/28/2018 +1 days 🔍
05/16/2023 +1691 days 🔍

Sourcesinfo

Advisory: FEDORA-2018-09c51bbcec
Status: Not defined

CVE: CVE-2018-16983 (🔍)
GCVE (CVE): GCVE-0-2018-16983
GCVE (VulDB): GCVE-100-123991

Entryinfo

Created: 09/13/2018 02:05 PM
Updated: 05/16/2023 09:32 AM
Changes: 09/13/2018 02:05 PM (70), 03/23/2020 02:14 PM (2), 05/16/2023 09:32 AM (4)
Complete: 🔍
Cache ID: 18:0B2:40

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