Electric Coin Company Zcashd up to 2.1.1 Timestamp authorization

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CVSS Meta Temp Score
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CTI Interest Score
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6.0$0-$5k0.00

A vulnerability was found in Electric Coin Company Zcashd up to 2.1.1. It has been rated as problematic. This issue affects an unknown code block of the component Timestamp Handler. The manipulation with an unknown input leads to a privilege escalation vulnerability. Using CWE to declare the problem leads to CWE-863. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Electric Coin Company Zcashd before 2.1.1-1 allows attackers to trigger consensus failure and double spending. A valid chain could be incorrectly rejected because timestamp requirements on block headers were not properly enforced.

The weakness was disclosed 02/05/2021. It is possible to read the advisory at electriccoin.co. The identification of this vulnerability is CVE-2020-8806 since 02/07/2020. The exploitation is known to be difficult. The attack may be initiated remotely. The requirement for exploitation is a simple authentication. The technical details are unknown and an exploit is not publicly available.

Applying the patch 2.1.1-1 is able to eliminate this problem.

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VulDB Meta Base Score: 6.2
VulDB Meta Temp Score: 6.0

VulDB Base Score: 5.0
VulDB Temp Score: 4.8
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔒

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VulDB Reliability: 🔍

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Exploitinginfoedit

Class: Privilege escalation
CWE: CWE-863
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat: 🔍
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Recommended: Patch
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0-Day Time: 🔒

Patch: 2.1.1-1

Timelineinfoedit

02/07/2020 CVE assigned
02/05/2021 +364 days Advisory disclosed
02/05/2021 +0 days VulDB entry created
02/24/2021 +19 days VulDB last update

Sourcesinfoedit

Advisory: electriccoin.co
Status: Confirmed

CVE: CVE-2020-8806 (🔒)

Entryinfoedit

Created: 02/05/2021 08:11 PM
Updated: 02/24/2021 09:07 PM
Changes: (20) vulnerability_cwe vulnerability_cvss3_nvd_av vulnerability_cvss3_nvd_ac vulnerability_cvss3_nvd_pr vulnerability_cvss3_nvd_ui vulnerability_cvss3_nvd_s vulnerability_cvss3_nvd_c vulnerability_cvss3_nvd_i vulnerability_cvss3_nvd_a vulnerability_cvss2_nvd_av vulnerability_cvss2_nvd_ac vulnerability_cvss2_nvd_au vulnerability_cvss2_nvd_ci vulnerability_cvss2_nvd_ii vulnerability_cvss2_nvd_ai vulnerability_cvss3_meta_basescore vulnerability_cvss3_meta_tempscore exploit_price_0day vulnerability_cvss2_nvd_basescore vulnerability_cvss3_nvd_basescore
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