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Vulnerability Details :

CVE-2020-26896

Summary
Assigner-mitre
Assigner Org ID-8254265b-2729-46b6-b9e3-3dfca2d5bfca
Published At-21 Oct, 2020 | 02:00
Updated At-04 Aug, 2024 | 16:03
Rejected At-
Credits

Prior to 0.11.0-beta, LND (Lightning Network Daemon) had a vulnerability in its invoice database. While claiming on-chain a received HTLC output, it didn't verify that the corresponding outgoing off-chain HTLC was already settled before releasing the preimage. In the case of a hash-and-amount collision with an invoice, the preimage for an expected payment was instead released. A malicious peer could have deliberately intercepted an HTLC intended for the victim node, probed the preimage through a colluding relayed HTLC, and stolen the intercepted HTLC. The impact is a loss of funds in certain situations, and a weakening of the victim's receiver privacy.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:mitre
Assigner Org ID:8254265b-2729-46b6-b9e3-3dfca2d5bfca
Published At:21 Oct, 2020 | 02:00
Updated At:04 Aug, 2024 | 16:03
Rejected At:
▼CVE Numbering Authority (CNA)

Prior to 0.11.0-beta, LND (Lightning Network Daemon) had a vulnerability in its invoice database. While claiming on-chain a received HTLC output, it didn't verify that the corresponding outgoing off-chain HTLC was already settled before releasing the preimage. In the case of a hash-and-amount collision with an invoice, the preimage for an expected payment was instead released. A malicious peer could have deliberately intercepted an HTLC intended for the victim node, probed the preimage through a colluding relayed HTLC, and stolen the intercepted HTLC. The impact is a loss of funds in certain situations, and a weakening of the victim's receiver privacy.

Affected Products
Vendor
n/a
Product
n/a
Versions
Affected
  • n/a
Problem Types
TypeCWE IDDescription
textN/An/a
Type: text
CWE ID: N/A
Description: n/a
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://gist.github.com/ariard/6bdeb995565d1cc292753e1ee4ae402d
x_refsource_MISC
https://lists.linuxfoundation.org/pipermail/lightning-dev/2020-October/002857.html
x_refsource_MISC
https://lists.linuxfoundation.org/pipermail/lightning-dev/2020-October/002855.html
x_refsource_MISC
Hyperlink: https://gist.github.com/ariard/6bdeb995565d1cc292753e1ee4ae402d
Resource:
x_refsource_MISC
Hyperlink: https://lists.linuxfoundation.org/pipermail/lightning-dev/2020-October/002857.html
Resource:
x_refsource_MISC
Hyperlink: https://lists.linuxfoundation.org/pipermail/lightning-dev/2020-October/002855.html
Resource:
x_refsource_MISC
▼Authorized Data Publishers (ADP)
CVE Program Container
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://gist.github.com/ariard/6bdeb995565d1cc292753e1ee4ae402d
x_refsource_MISC
x_transferred
https://lists.linuxfoundation.org/pipermail/lightning-dev/2020-October/002857.html
x_refsource_MISC
x_transferred
https://lists.linuxfoundation.org/pipermail/lightning-dev/2020-October/002855.html
x_refsource_MISC
x_transferred
Hyperlink: https://gist.github.com/ariard/6bdeb995565d1cc292753e1ee4ae402d
Resource:
x_refsource_MISC
x_transferred
Hyperlink: https://lists.linuxfoundation.org/pipermail/lightning-dev/2020-October/002857.html
Resource:
x_refsource_MISC
x_transferred
Hyperlink: https://lists.linuxfoundation.org/pipermail/lightning-dev/2020-October/002855.html
Resource:
x_refsource_MISC
x_transferred
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:cve@mitre.org
Published At:21 Oct, 2020 | 02:15
Updated At:05 Nov, 2020 | 15:43

Prior to 0.11.0-beta, LND (Lightning Network Daemon) had a vulnerability in its invoice database. While claiming on-chain a received HTLC output, it didn't verify that the corresponding outgoing off-chain HTLC was already settled before releasing the preimage. In the case of a hash-and-amount collision with an invoice, the preimage for an expected payment was instead released. A malicious peer could have deliberately intercepted an HTLC intended for the victim node, probed the preimage through a colluding relayed HTLC, and stolen the intercepted HTLC. The impact is a loss of funds in certain situations, and a weakening of the victim's receiver privacy.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Primary3.18.2HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
Primary2.05.8MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:N
Type: Primary
Version: 3.1
Base score: 8.2
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
Type: Primary
Version: 2.0
Base score: 5.8
Base severity: MEDIUM
Vector:
AV:N/AC:M/Au:N/C:P/I:P/A:N
CPE Matches
lightning_network_daemon_project
lightning_network_daemon_project
>>lightning_network_daemon>>Versions before 0.11.0(exclusive)
cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:*:*:*:*:*:*:*:*
lightning_network_daemon_project
lightning_network_daemon_project
>>lightning_network_daemon>>0.11.0
cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.11.0:-:*:*:*:*:*:*
lightning_network_daemon_project
lightning_network_daemon_project
>>lightning_network_daemon>>0.11.0
cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.11.0:beta_rc1:*:*:*:*:*:*
lightning_network_daemon_project
lightning_network_daemon_project
>>lightning_network_daemon>>0.11.0
cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.11.0:beta_rc2:*:*:*:*:*:*
lightning_network_daemon_project
lightning_network_daemon_project
>>lightning_network_daemon>>0.11.0
cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.11.0:beta_rc3:*:*:*:*:*:*
lightning_network_daemon_project
lightning_network_daemon_project
>>lightning_network_daemon>>0.11.0
cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.11.0:beta_rc4:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-354Primarynvd@nist.gov
CWE ID: CWE-354
Type: Primary
Source: nvd@nist.gov
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://gist.github.com/ariard/6bdeb995565d1cc292753e1ee4ae402dcve@mitre.org
Third Party Advisory
https://lists.linuxfoundation.org/pipermail/lightning-dev/2020-October/002855.htmlcve@mitre.org
Mailing List
Third Party Advisory
https://lists.linuxfoundation.org/pipermail/lightning-dev/2020-October/002857.htmlcve@mitre.org
Mailing List
Patch
Third Party Advisory
Hyperlink: https://gist.github.com/ariard/6bdeb995565d1cc292753e1ee4ae402d
Source: cve@mitre.org
Resource:
Third Party Advisory
Hyperlink: https://lists.linuxfoundation.org/pipermail/lightning-dev/2020-October/002855.html
Source: cve@mitre.org
Resource:
Mailing List
Third Party Advisory
Hyperlink: https://lists.linuxfoundation.org/pipermail/lightning-dev/2020-October/002857.html
Source: cve@mitre.org
Resource:
Mailing List
Patch
Third Party Advisory

Change History

0
Information is not available yet

Similar CVEs

1Records found
CVE-2020-26895
Matching Score-6
Assigner-MITRE Corporation
ShareView Details
Matching Score-6
Assigner-MITRE Corporation
CVSS Score-5.3||MEDIUM
EPSS-0.15% / 35.88%
||
7 Day CHG~0.00%
Published-21 Oct, 2020 | 02:00
Updated-04 Aug, 2024 | 16:03
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Prior to 0.10.0-beta, LND (Lightning Network Daemon) would have accepted a counterparty high-S signature and broadcast tx-relay invalid local commitment/HTLC transactions. This can be exploited by any peer with an open channel regardless of the victim situation (e.g., routing node, payment-receiver, or payment-sender). The impact is a loss of funds in certain situations.

Action-Not Available
Vendor-lightning_network_daemon_projectn/a
Product-lightning_network_daemonn/a
CWE ID-CWE-354
Improper Validation of Integrity Check Value
Details not found