Plone 2.5-5.1rc1 Web Template str.format access control

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CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.2$0-$5k0.00

A vulnerability, which was classified as critical, has been found in Plone 2.5-5.1rc1 (Content Management System). This issue affects the function str.format of the component Web Template Handler. The manipulation with an unknown input leads to a privilege escalation vulnerability. Using CWE to declare the problem leads to CWE-264. Impacted is confidentiality. The summary by CVE is:

Accessing private content via str.format in through-the-web templates and scripts in Plone 2.5-5.1rc1. This improves an earlier hotfix. Since the format method was introduced in Python 2.6, this part of the hotfix is only relevant for Plone 4 and 5.

The bug was discovered 11/28/2017. The weakness was disclosed 01/03/2018 (Website). It is possible to read the advisory at plone.org. The identification of this vulnerability is CVE-2017-1000483 since 01/03/2018. The exploitation is known to be easy. The attack may be initiated remotely. The successful exploitation needs a simple authentication. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 36 days. During that time the estimated underground price was around $0-$5k.

Applying a patch is able to eliminate this problem.

The entries 111288, 111286 and 111285 are pretty similar.

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CPE 2.3infoedit

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CVSSv3infoedit

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.2

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2infoedit

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

NVD Base Score: 🔍

Exploitinginfoedit

Class: Privilege escalation
CWE: CWE-264
ATT&CK: T1068

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfoedit

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Countermeasuresinfoedit

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Timelineinfoedit

11/28/2017 🔍
01/03/2018 +36 days 🔍
01/03/2018 +0 days 🔍
01/03/2018 +0 days 🔍
01/04/2018 +1 days 🔍
12/19/2019 +714 days 🔍

Sourcesinfoedit

Advisory: plone.org
Status: Not defined

CVE: CVE-2017-1000483 (🔍)
See also: 🔍

Entryinfoedit

Created: 01/04/2018 07:34 AM
Updated: 12/19/2019 11:44 AM
Changes: (1) vulnerability_discoverydate
Complete: 🔍

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