PHPMailer up to 6.4.1 validateAddress patternselect injection

CVSS Meta Temp Score
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability was found in PHPMailer up to 6.4.1. It has been rated as critical. This vulnerability affects the function validateAddress. The manipulation of the argument patternselect leads to injection. This vulnerability is documented as CVE-2021-3603. The attack can be initiated remotely. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in PHPMailer up to 6.4.1. It has been rated as critical. This issue affects the function validateAddress. The manipulation of the argument patternselect with an unknown input leads to a injection vulnerability. Using CWE to declare the problem leads to CWE-74. The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability.

The weakness was released 06/17/2021. It is possible to read the advisory at huntr.dev. The identification of this vulnerability is CVE-2021-3603. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1055 according to MITRE ATT&CK.

Upgrading to version 6.5.0 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

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Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.4

VulDB Base Score: 5.6
VulDB Temp Score: 5.4
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: Injection
CWE: CWE-74 / CWE-707 / 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: PHPMailer 6.5.0
Patch: github.com

Timelineinfo

06/15/2021 🔍
06/17/2021 +2 days 🔍
06/17/2021 +0 days 🔍
06/21/2021 +4 days 🔍

Sourcesinfo

Product: github.com

Advisory: huntr.dev
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-3603 (🔍)
GCVE (CVE): GCVE-0-2021-3603
GCVE (VulDB): GCVE-100-177191

Entryinfo

Created: 06/17/2021 19:55
Updated: 06/21/2021 11:15
Changes: 06/17/2021 19:55 (39), 06/21/2021 11:08 (6), 06/21/2021 11:15 (1)
Complete: 🔍
Cache ID: 216::103

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