Pi-hole up to 5.5.0 Web Interface preg_match code injection

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.0$0-$5k0.00

Summaryinfo

A vulnerability was found in Pi-hole up to 5.5.0. It has been declared as critical. This affects the function preg_match of the component Web Interface Handler. Such manipulation leads to code injection. This vulnerability is documented as CVE-2021-32706. The attack can be executed remotely. Additionally, an exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Pi-hole up to 5.5.0. It has been rated as critical. Affected by this issue is the function preg_match of the component Web Interface Handler. The manipulation with an unknown input leads to a code injection vulnerability. Using CWE to declare the problem leads to CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. Impacted is confidentiality, integrity, and availability.

The weakness was released 08/05/2021. The advisory is shared for download at github.com. This vulnerability is handled as CVE-2021-32706. Technical details as well as a public exploit are known. The MITRE ATT&CK project declares the attack technique as T1059.

The exploit is available at packetstormsecurity.com. It is declared as highly functional.

Upgrading to version 5.5.1 eliminates this vulnerability. The upgrade is hosted for download at github.com.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

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

CVSSv2info

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

Exploitinginfo

Class: Code injection
CWE: CWE-94 / CWE-74 / CWE-707
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Highly functional
Download: 🔍

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: Pi-hole 5.5.1

Timelineinfo

05/12/2021 🔍
08/05/2021 +85 days 🔍
08/05/2021 +0 days 🔍
08/31/2024 +1122 days 🔍

Sourcesinfo

Advisory: github.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-32706 (🔍)
GCVE (CVE): GCVE-0-2021-32706
GCVE (VulDB): GCVE-100-180116
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 08/05/2021 07:59
Updated: 08/31/2024 23:48
Changes: 08/05/2021 07:59 (39), 08/08/2021 14:09 (3), 08/08/2021 14:10 (1), 08/31/2024 23:48 (19)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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