phpseclib up to 2.0.30/3.0.6 RSA PKCS#1 v1.5 Signature Verification signature verification

CVSS Meta Temp Score
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CTI Interest Score
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3.4$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in phpseclib up to 2.0.30/3.0.6. This impacts an unknown function of the component RSA PKCS#1 v1.5 Signature Verification Handler. Performing a manipulation results in signature verification. This vulnerability was named CVE-2021-30130. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in phpseclib up to 2.0.30/3.0.6. This affects an unknown code of the component RSA PKCS#1 v1.5 Signature Verification Handler. The manipulation with an unknown input leads to a signature verification vulnerability. CWE is classifying the issue as CWE-347. The product does not verify, or incorrectly verifies, the cryptographic signature for data. This is going to have an impact on confidentiality.

The weakness was presented 04/07/2021. The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2021-30130. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 233753 (Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS : phpseclib vulnerabilities (USN-7404-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 2.0.31 or 3.0.7 eliminates this vulnerability. The upgrade is hosted for download at github.com.

The vulnerability is also documented in the vulnerability database at Tenable (233753). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
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: Signature verification
CWE: CWE-347 / CWE-345
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 233753
Nessus Name: Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS : phpseclib vulnerabilities (USN-7404-1)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: phpseclib 2.0.31/3.0.7

Timelineinfo

04/05/2021 🔍
04/07/2021 +2 days 🔍
04/07/2021 +0 days 🔍
04/02/2025 +1456 days 🔍

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-30130 (🔍)
GCVE (CVE): GCVE-0-2021-30130
GCVE (VulDB): GCVE-100-172533

Entryinfo

Created: 04/07/2021 07:56
Updated: 04/02/2025 20:53
Changes: 04/07/2021 07:56 (38), 04/11/2021 08:39 (6), 04/02/2025 20:53 (16)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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