cPanel up to 62.0.3 WHM SSL certificate Generation Email certificate validation

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
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CTI Interest Score
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6.1$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in cPanel up to 62.0.3. Affected by this issue is some unknown functionality of the component WHM SSL certificate Generation. Executing a manipulation can lead to certificate validation (Email). This vulnerability is tracked as CVE-2017-18479. The attack can be launched remotely. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as critical was found in cPanel up to 62.0.3 (Hosting Control Software). This vulnerability affects an unknown part of the component WHM SSL certificate Generation. The manipulation with an unknown input leads to a certificate validation vulnerability (Email). The CWE definition for the vulnerability is CWE-295. The product does not validate, or incorrectly validates, a certificate. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

In cPanel before 62.0.4, WHM SSL certificate generation uses an unreserved e-mail address (SEC-209).

The weakness was disclosed 08/05/2019 (Website). The advisory is shared for download at documentation.cpanel.net. This vulnerability was named CVE-2017-18479 since 07/31/2019. The exploitation appears to be easy. The attack can be initiated remotely. A single authentication is necessary for exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1587.003.

Upgrading to version 62.0.4 eliminates this vulnerability.

The entries VDB-139354, VDB-139355, VDB-139356 and VDB-139357 are pretty similar. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.2

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

NVD Base Score: 6.5
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

Name: Email
Class: Certificate validation / Email
CWE: CWE-295 / CWE-287
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: cPanel 62.0.4

Timelineinfo

07/31/2019 🔍
08/05/2019 +5 days 🔍
08/05/2019 +0 days 🔍
07/21/2020 +351 days 🔍

Sourcesinfo

Advisory: documentation.cpanel.net
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-18479 (🔍)
GCVE (CVE): GCVE-0-2017-18479
GCVE (VulDB): GCVE-100-139492
See also: 🔍

Entryinfo

Created: 08/05/2019 21:59
Updated: 07/21/2020 09:06
Changes: 08/05/2019 21:59 (58), 07/21/2020 09:06 (1)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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