CVE-2022-35926
Contiki-NG IPv6 Neighbor Discovery Option Out-of-Bounds Read Vulnerability
Description
Contiki-NG is an open-source, cross-platform operating system for IoT devices. Because of insufficient validation of IPv6 neighbor discovery options in Contiki-NG, attackers can send neighbor solicitation packets that trigger an out-of-bounds read. The problem exists in the module os/net/ipv6/uip-nd6.c, where memory read operations from the main packet buffer, <code>uip_buf</code>, are not checked if they go out of bounds. In particular, this problem can occur when attempting to read the 2-byte option header and the Source Link-Layer Address Option (SLLAO). This attack requires ipv6 be enabled for the network. The problem has been patched in the develop branch of Contiki-NG. The upcoming 4.8 release of Contiki-NG will include the patch.Users unable to upgrade may apply the patch in Contiki-NG PR #1654.
INFO
Published Date :
Aug. 4, 2022, 9:15 p.m.
Last Modified :
Aug. 11, 2022, 2:14 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
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-2022-35926.
| URL | Resource |
|---|---|
| https://github.com/contiki-ng/contiki-ng/pull/1654 | Patch Third Party Advisory |
| https://github.com/contiki-ng/contiki-ng/pull/1654/commits/a4597001d50a04f4b9c78f323ba731e2f979802c | Patch Third Party Advisory |
| https://github.com/contiki-ng/contiki-ng/releases/tag/release%2Fv4.8 | Third Party Advisory |
| https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-4hpq-4f53-w386 | 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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2022-35926 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2022-35926 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.
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CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Aug. 11, 2022
Action Type Old Value New Value Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://github.com/contiki-ng/contiki-ng/pull/1654 No Types Assigned https://github.com/contiki-ng/contiki-ng/pull/1654 Patch, Third Party Advisory Changed Reference Type https://github.com/contiki-ng/contiki-ng/pull/1654/commits/a4597001d50a04f4b9c78f323ba731e2f979802c No Types Assigned https://github.com/contiki-ng/contiki-ng/pull/1654/commits/a4597001d50a04f4b9c78f323ba731e2f979802c Patch, Third Party Advisory Changed Reference Type https://github.com/contiki-ng/contiki-ng/releases/tag/release%2Fv4.8 No Types Assigned https://github.com/contiki-ng/contiki-ng/releases/tag/release%2Fv4.8 Third Party Advisory Changed Reference Type https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-4hpq-4f53-w386 No Types Assigned https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-4hpq-4f53-w386 Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:contiki-ng:contiki-ng:*:*:*:*:*:*:*:* versions up to (excluding) 4.8
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2022-35926 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-2022-35926
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.14 }} 0.01%
score
0.48736
percentile