BusyBox SSL Certificate Validator 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
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.7$0-$5k0.00

Summaryinfo

A vulnerability was found in BusyBox. It has been rated as critical. The affected element is an unknown function of the component SSL Certificate Validator. This manipulation causes certificate validation. This vulnerability is tracked as CVE-2018-1000500. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability classified as critical was found in BusyBox (version unknown). Affected by this vulnerability is an unknown function of the component SSL Certificate Validator. The manipulation with an unknown input leads to a certificate validation vulnerability. 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. The summary by CVE is:

Busybox contains a Missing SSL certificate validation vulnerability in The "busybox wget" applet that can result in arbitrary code execution. This attack appear to be exploitable via Simply download any file over HTTPS using "busybox wget https://compromised-domain.com/important-file".

The bug was discovered 05/27/2018. The weakness was disclosed 06/26/2018 (Website). The advisory is shared at lists.busybox.net. This vulnerability is known as CVE-2018-1000500 since 06/22/2018. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1587.003 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 30 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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

Productinfo

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 6.7

VulDB Base Score: 5.6
VulDB Temp Score: 5.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.1
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

Class: Certificate validation
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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Patch: git.busybox.net

Timelineinfo

05/27/2018 🔍
06/22/2018 +26 days 🔍
06/26/2018 +3 days 🔍
06/26/2018 +0 days 🔍
06/27/2018 +1 days 🔍
06/09/2025 +2539 days 🔍

Sourcesinfo

Advisory: USN-4531-1
Status: Confirmed

CVE: CVE-2018-1000500 (🔍)
GCVE (CVE): GCVE-0-2018-1000500
GCVE (VulDB): GCVE-100-119917

Entryinfo

Created: 06/27/2018 08:27
Updated: 06/09/2025 19:58
Changes: 06/27/2018 08:27 (55), 02/22/2020 09:02 (1), 03/28/2023 20:07 (4), 06/09/2025 19:58 (22)
Complete: 🔍
Cache ID: 216::103

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