PT-2021-19612 · Unknown+1 · Bitcoin Core+1

Florian Mathieu + 1 · Published 2021-01-21 · Updated 2024-08-03 · CVE-2021-3195

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Name of the Vulnerable Software and Affected Versions: Bitcoin Core versions through 0.21.0

Description: The issue allows bitcoind to create a new file in an arbitrary directory, such as outside the ~/.bitcoin directory, via a "dumpwallet" RPC call. This reportedly does not violate the security model of Bitcoin Core but can violate the security model of a fork that has implemented dumpwallet restrictions.

Recommendations: For versions through 0.21.0, as a temporary workaround, consider restricting the use of the "dumpwallet" RPC call until a more permanent solution is available. Restrict access to arbitrary directories to minimize the risk of exploitation.

Exploit

Fix

RCE

Weakness Enumeration

CWE-20

Related Identifiers

ALT-PU-2021-1754

ALT-PU-2021-2955

CVE-2021-3195

OPENSUSE-SU-2022:0072-1

OPENSUSE-SU-2024:10654-1

Affected Products

Alt Linux

Bitcoin Core

References · 7

• 🔥 https://github.com/bitcoin/bitcoin/issues/20866 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2021-3195 · Security Note
• https://osv.dev/vulnerability/CVE-2021-3195 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2022:0072-1 · Vendor Advisory
• https://suse.com/security/cve/CVE-2021-3195 · Note
• https://t.me/cvenotify/88813 · Telegram Post
• https://lists.opensuse.org/archives/list/[e-mail]/thread/ZQOIWU7XODRDIITDKWB45QLM5US3ATJW · Note