BigBlueButton up to 2.2.8 Ghostscript sandbox

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.
8.0$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in BigBlueButton up to 2.2.8. This affects an unknown part of the component Ghostscript. Executing a manipulation can lead to sandbox. This vulnerability is handled as CVE-2020-27605. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability classified as critical was found in BigBlueButton up to 2.2.8. This vulnerability affects some unknown functionality of the component Ghostscript. The manipulation with an unknown input leads to a sandbox vulnerability. The CWE definition for the vulnerability is CWE-265. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was released 10/22/2020. The advisory is shared for download at golem.de. This vulnerability was named CVE-2020-27605. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1611.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

VulDB Base Score: 6.3
VulDB Temp Score: 6.3
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: Sandbox
CWE: CWE-265 / CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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

10/21/2020 🔍
10/22/2020 +1 days 🔍
10/22/2020 +0 days 🔍
11/25/2020 +34 days 🔍

Sourcesinfo

Advisory: golem.de
Status: Not defined

CVE: CVE-2020-27605 (🔍)
GCVE (CVE): GCVE-0-2020-27605
GCVE (VulDB): GCVE-100-163396

Entryinfo

Created: 10/22/2020 21:16
Updated: 11/25/2020 16:59
Changes: 10/22/2020 21:16 (35), 11/25/2020 16:54 (2), 11/25/2020 16:59 (18)
Complete: 🔍
Cache ID: 216::103

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