TYPO3 up to 8.1.1 ExtbasE 7pk security

CVSS Meta Temp Score
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CTI Interest Score
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7.5$0-$5k0.00

Summaryinfo

A vulnerability was found in TYPO3 up to 8.1.1. It has been declared as critical. This issue affects some unknown processing of the component ExtbasE. Executing a manipulation can lead to 7pk security. This vulnerability is handled as CVE-2016-5091. The attack can be executed remotely. There is not any exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability has been found in TYPO3 up to 8.1.1 (Content Management System) and classified as critical. This vulnerability affects some unknown processing of the component ExtbasE. The manipulation with an unknown input 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. CVE summarizes:

ExtbasE in TYPO3 4.3.0 before 6.2.24, 7.x before 7.6.8, and 8.1.1 allows remote attackers to obtain sensitive information or possibly execute arbitrary code via a crafted Extbase action.

The bug was discovered 05/24/2016. The weakness was released 01/23/2017 (Website). The advisory is shared for download at openwall.com. This vulnerability was named CVE-2016-5091 since 05/26/2016. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1211.

The vulnerability was handled as a non-public zero-day exploit for at least 55 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 92448 (FreeBSD : typo3 -- Missing access check in Extbase (3caf4e6c-4cef-11e6-a15f-00248c0c745d)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks and running in the context l.

Upgrading eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (92448). Once again VulDB remains the best source for vulnerability data.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.7
VulDB Meta Temp Score: 7.5

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.1
NVD Vector: 🔍

CVSSv2info

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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: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 92448
Nessus Name: FreeBSD : typo3 -- Missing access check in Extbase (3caf4e6c-4cef-11e6-a15f-00248c0c745d)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 100641
OpenVAS Name: TYPO3 Extbase Remote Code Execution Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

05/24/2016 🔍
05/26/2016 +2 days 🔍
07/18/2016 +53 days 🔍
07/20/2016 +2 days 🔍
01/23/2017 +187 days 🔍
01/23/2017 +0 days 🔍
01/24/2017 +1 days 🔍
05/14/2026 +3397 days 🔍

Sourcesinfo

Product: typo3.org

Advisory: openwall.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-5091 (🔍)
GCVE (CVE): GCVE-0-2016-5091
GCVE (VulDB): GCVE-100-95836
OSVDB: - CVE-2016-5091 - TYPO3 - Information Disclosure Issue

Entryinfo

Created: 01/24/2017 08:31
Updated: 05/14/2026 13:59
Changes: 01/24/2017 08:31 (67), 07/30/2020 16:12 (5), 05/14/2026 13:59 (19)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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