5.3
MEDIUM
CVE-2020-26895
"Lightning Network Daemon Signature Manipulation Fund Theft Vulnerability"
Description

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.

INFO

Published Date :

Oct. 21, 2020, 2:15 a.m.

Last Modified :

Oct. 30, 2020, 7:17 p.m.

Remotely Exploitable :

Yes !

Impact Score :

1.4

Exploitability Score :

3.9
Public PoC/Exploit Available at Github

CVE-2020-26895 has a 1 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2020-26895 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Lightning_network_daemon_project lightning_network_daemon
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2020-26895.

URL Resource
https://gist.github.com/ariard/fb432a9d2cd3ba24fdc18ccc8c5c6eb4 Third Party Advisory
https://lists.linuxfoundation.org/pipermail/lightning-dev/2020-October/002856.html Mailing List Third Party Advisory
https://lists.linuxfoundation.org/pipermail/lightning-dev/2020-October/002858.html Mailing List Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

master

C++ HTML M4

Updated: 2 years, 2 months ago
1 stars 0 fork 0 watcher
Born at : Sept. 18, 2021, 3:33 a.m. This repo has been linked 46 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2020-26895 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2020-26895 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Oct. 30, 2020

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:P/A:N)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
    Changed Reference Type https://gist.github.com/ariard/fb432a9d2cd3ba24fdc18ccc8c5c6eb4 No Types Assigned https://gist.github.com/ariard/fb432a9d2cd3ba24fdc18ccc8c5c6eb4 Third Party Advisory
    Changed Reference Type https://lists.linuxfoundation.org/pipermail/lightning-dev/2020-October/002856.html No Types Assigned https://lists.linuxfoundation.org/pipermail/lightning-dev/2020-October/002856.html Mailing List, Third Party Advisory
    Changed Reference Type https://lists.linuxfoundation.org/pipermail/lightning-dev/2020-October/002858.html No Types Assigned https://lists.linuxfoundation.org/pipermail/lightning-dev/2020-October/002858.html Mailing List, Third Party Advisory
    Added CWE NIST CWE-354
    Added CPE Configuration OR *cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.1:alpha:*:*:*:*:*:* *cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.1.1:alpha:*:*:*:*:*:* *cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.2:alpha:*:*:*:*:*:* *cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.2.1:alpha:*:*:*:*:*:* *cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.3:alpha:*:*:*:*:*:* *cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.4:beta:*:*:*:*:*:* *cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.4.1:beta:*:*:*:*:*:* *cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.4.2:beta:*:*:*:*:*:* *cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.5:beta:*:*:*:*:*:* *cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.5:beta_rc1:*:*:*:*:*:* *cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.5:beta_rc2:*:*:*:*:*:* *cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.5.1:beta:*:*:*:*:*:* *cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.5.1:beta_rc1:*:*:*:*:*:* *cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.5.1:beta_rc2:*:*:*:*:*:* *cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.5.1:beta_rc3:*:*:*:*:*:* *cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.5.1:beta_rc4:*:*:*:*:*:* *cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.5.2:beta:*:*:*:*:*:* *cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.6:beta:*:*:*:*:*:* *cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.6:beta_rc1:*:*:*:*:*:* *cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.6:beta_rc2:*:*:*:*:*:* *cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.6:beta_rc3:*:*:*:*:*:* *cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.6:beta_rc4:*:*:*:*:*:* *cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.6.1:beta:*:*:*:*:*:* *cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.6.1:beta_rc1:*:*:*:*:*:* *cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.6.1:beta_rc2:*:*:*:*:*:* *cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.7.0:beta:*:*:*:*:*:* *cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.7.0:beta_rc1:*:*:*:*:*:* *cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.7.0:beta_rc2:*:*:*:*:*:* *cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.7.0:beta_rc3:*:*:*:*:*:* *cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.7.1:beta:*:*:*:*:*:* *cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.7.1:beta_rc1:*:*:*:*:*:* *cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.7.1:beta_rc2:*:*:*:*:*:* *cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.8.0:beta:*:*:*:*:*:* *cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.8.0:beta_rc1:*:*:*:*:*:* *cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.8.0:beta_rc2:*:*:*:*:*:* *cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.8.0:beta_rc3:*:*:*:*:*:* *cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.8.1:beta:*:*:*:*:*:* *cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.8.2:beta:*:*:*:*:*:* *cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.8.2:beta_rc1:*:*:*:*:*:* *cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.8.2:beta_rc2:*:*:*:*:*:* *cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.9.0:beta:*:*:*:*:*:* *cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.9.0:beta_rc1:*:*:*:*:*:* *cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.9.0:beta_rc2:*:*:*:*:*:* *cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.9.0:beta_rc3:*:*:*:*:*:* *cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.9.0:beta_rc4:*:*:*:*:*:* *cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.9.1:beta:*:*:*:*:*:* *cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.9.1:beta_rc1:*:*:*:*:*:* *cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.9.2:beta:*:*:*:*:*:* *cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.10.0:beta_rc1:*:*:*:*:*:* *cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.10.0:beta_rc2:*:*:*:*:*:* *cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.10.0:beta_rc3:*:*:*:*:*:* *cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.10.0:beta_rc4:*:*:*:*:*:* *cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.10.0:beta_rc5:*:*:*:*:*:* *cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.10.0:beta_rc6:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2020-26895 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2020-26895 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.06 }} 0.00%

score

0.23045

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability