Concrete CMS up to 8.5.5 Phar Deserialization is_dir deserialization

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Concrete CMS up to 8.5.5. Affected by this vulnerability is the function is_dir of the component Phar Deserialization. Such manipulation leads to deserialization. This vulnerability is documented as CVE-2021-40102. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Concrete CMS up to 8.5.5 (Content Management System) and classified as critical. Affected by this issue is the function is_dir of the component Phar Deserialization. The manipulation with an unknown input leads to a deserialization vulnerability. Using CWE to declare the problem leads to CWE-502. The product deserializes untrusted data without sufficiently verifying that the resulting data will be valid. Impacted is integrity, and availability.

The weakness was released 09/24/2021. The advisory is available at hackerone.com. This vulnerability is handled as CVE-2021-40102 since 08/25/2021. Technical details are known, but there is no available exploit.

Upgrading to version 8.5.6 eliminates this vulnerability. The upgrade is hosted for download at documentation.concretecms.org.

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Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 6.7

VulDB Base Score: 4.6
VulDB Temp Score: 4.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.1
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: Deserialization
CWE: CWE-502 / CWE-20
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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: CMS 8.5.6

Timelineinfo

08/25/2021 🔍
09/24/2021 +30 days 🔍
09/24/2021 +0 days 🔍
10/02/2021 +8 days 🔍

Sourcesinfo

Advisory: hackerone.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-40102 (🔍)
GCVE (CVE): GCVE-0-2021-40102
GCVE (VulDB): GCVE-100-183326

Entryinfo

Created: 09/24/2021 19:41
Updated: 10/02/2021 09:29
Changes: 09/24/2021 19:41 (43), 10/02/2021 09:26 (1), 10/02/2021 09:29 (18)
Complete: 🔍
Cache ID: 216::103

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