Flysystem up to 1.1.3/2.1.0 on PHP Whitespace toctou

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Flysystem up to 1.1.3/2.1.0 on PHP. This affects an unknown function of the component Whitespace Handler. The manipulation leads to toctou. This vulnerability is referenced as CVE-2021-32708. Remote exploitation of the attack is possible. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Flysystem up to 1.1.3/2.1.0 on PHP. It has been rated as critical. This issue affects some unknown functionality of the component Whitespace Handler. The manipulation with an unknown input leads to a toctou vulnerability. Using CWE to declare the problem leads to CWE-367. The product checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check. This can cause the product to perform invalid actions when the resource is in an unexpected state. Impacted is confidentiality, integrity, and availability.

The weakness was published 06/24/2021. It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2021-32708. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 1.1.4 or 2.1.1 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.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

Version

License

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: Toctou
CWE: CWE-367 / CWE-362
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: Flysystem 1.1.4/2.1.1
Patch: github.com

Timelineinfo

05/12/2021 🔍
06/24/2021 +43 days 🔍
06/24/2021 +0 days 🔍
06/26/2021 +2 days 🔍

Sourcesinfo

Advisory: github.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-32708 (🔍)
GCVE (CVE): GCVE-0-2021-32708
GCVE (VulDB): GCVE-100-177515

Entryinfo

Created: 06/24/2021 20:32
Updated: 06/26/2021 20:37
Changes: 06/24/2021 20:32 (39), 06/26/2021 20:30 (6), 06/26/2021 20:37 (1)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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