CVE-2020-13131
Yubico libykpiv Buffer Overflow
Description
An issue was discovered in Yubico libykpiv before 2.1.0. lib/util.c in this library (which is included in yubico-piv-tool) does not properly check embedded length fields during device communication. A malicious PIV token can misreport the returned length fields during RSA key generation. This will cause stack memory to be copied into heap allocated memory that gets returned to the caller. The leaked memory could include PINs, passwords, key material, and other sensitive information depending on the integration. During further processing by the caller, this information could leak across trust boundaries. Note that RSA key generation is triggered by the host and cannot directly be triggered by the token.
INFO
Published Date :
July 9, 2020, 6:15 p.m.
Last Modified :
July 16, 2020, 7:04 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
0.7
Affected Products
The following products are affected by CVE-2020-13131
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.
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-2020-13131.
| URL | Resource |
|---|---|
| https://blog.inhq.net/posts/yubico-libykpiv-vuln/ | Exploit Third Party Advisory |
| https://www.yubico.com/products/services-software/download/smart-card-drivers-tools/ | Vendor 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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-13131 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-13131 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]
Jul. 16, 2020
Action Type Old Value New Value Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism Added CVSS V2 NIST (AV:L/AC:M/Au:N/C:P/I:N/A:N) Added CVSS V3.1 NIST AV:P/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N Changed Reference Type https://blog.inhq.net/posts/yubico-libykpiv-vuln/ No Types Assigned https://blog.inhq.net/posts/yubico-libykpiv-vuln/ Exploit, Third Party Advisory Changed Reference Type https://www.yubico.com/products/services-software/download/smart-card-drivers-tools/ No Types Assigned https://www.yubico.com/products/services-software/download/smart-card-drivers-tools/ Vendor Advisory Added CWE NIST CWE-125 Added CPE Configuration OR *cpe:2.3:a:yubico:libykpiv:*:*:*:*:*:*:*:* versions up to (excluding) 2.1.0 Added CPE Configuration OR *cpe:2.3:a:yubico:piv_tool_manager:*:*:*:*:*:*:*:* versions up to (excluding) 2.0.0 Added CPE Configuration OR *cpe:2.3:a:yubico:yubikey_smart_card_minidriver:*:*:*:*:*:*:*:* versions up to (including) 4.1.0.172
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-13131 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-2020-13131
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.10 }} 0.01%
score
0.40970
percentile