CVE-2021-25664
"Capital Embedded AR Classic Nucleus Hop-by-Hop Extension Header Infinite Loop Vulnerability"
Description
A vulnerability has been identified in Capital Embedded AR Classic 431-422 (All versions), Capital Embedded AR Classic R20-11 (All versions < V2303), Nucleus NET (All versions), Nucleus ReadyStart V3 (All versions < V2017.02.4), Nucleus ReadyStart V4 (All versions < V4.1.0), Nucleus Source Code (All versions including affected IPv6 stack). The function that processes the Hop-by-Hop extension header in IPv6 packets and its options lacks any checks against the length field of the header, allowing attackers to put the function into an infinite loop by supplying arbitrary length values.
INFO
Published Date :
April 22, 2021, 9:15 p.m.
Last Modified :
Feb. 13, 2024, 9:15 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
Affected Products
The following products are affected by CVE-2021-25664
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-2021-25664.
| URL | Resource |
|---|---|
| https://cert-portal.siemens.com/productcert/html/ssa-248289.html | |
| https://cert-portal.siemens.com/productcert/pdf/ssa-248289.pdf | Vendor Advisory |
| https://us-cert.cisa.gov/ics/advisories/icsa-21-103-05 | Third Party Advisory US Government Resource |
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-2021-25664 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-25664 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 -
CVE Modified by [email protected]
Feb. 13, 2024
Action Type Old Value New Value Changed Description A vulnerability has been identified in Capital VSTAR (Versions including affected IPv6 stack), Nucleus NET (All versions), Nucleus ReadyStart V3 (All versions < V2017.02.4), Nucleus ReadyStart V4 (All versions < V4.1.0), Nucleus Source Code (Versions including affected IPv6 stack). The function that processes the Hop-by-Hop extension header in IPv6 packets and its options lacks any checks against the length field of the header, allowing attackers to put the function into an infinite loop by supplying arbitrary length values. A vulnerability has been identified in Capital Embedded AR Classic 431-422 (All versions), Capital Embedded AR Classic R20-11 (All versions < V2303), Nucleus NET (All versions), Nucleus ReadyStart V3 (All versions < V2017.02.4), Nucleus ReadyStart V4 (All versions < V4.1.0), Nucleus Source Code (All versions including affected IPv6 stack). The function that processes the Hop-by-Hop extension header in IPv6 packets and its options lacks any checks against the length field of the header, allowing attackers to put the function into an infinite loop by supplying arbitrary length values. Added Reference Siemens AG https://cert-portal.siemens.com/productcert/html/ssa-248289.html [No types assigned] Added CVSS V3.1 Siemens AG AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H -
Modified Analysis by [email protected]
May. 01, 2022
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:siemens:capital_vstar:-:*:*:*:*:*:*:* *cpe:2.3:a:siemens:nucleus_net:*:*:*:*:*:*:*:* *cpe:2.3:a:siemens:nucleus_readystart:*:*:*:*:*:*:*:* *cpe:2.3:a:siemens:nucleus_source_code:-:*:*:*:*:*:*:* OR *cpe:2.3:a:siemens:capital_vstar:-:*:*:*:*:*:*:* *cpe:2.3:a:siemens:nucleus_net:-:*:*:*:*:*:*:* *cpe:2.3:a:siemens:nucleus_readystart_v3:*:*:*:*:*:*:*:* versions up to (excluding) 2017.02.4 *cpe:2.3:a:siemens:nucleus_readystart_v4:*:*:*:*:*:*:*:* versions up to (excluding) 4.1.0 *cpe:2.3:a:siemens:nucleus_source_code:-:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Nov. 17, 2021
Action Type Old Value New Value Changed Description A vulnerability has been identified in Nucleus 4 (All versions < V4.1.0), Nucleus NET (All versions), Nucleus ReadyStart (All versions), Nucleus Source Code (versions including affected IPv6 stack), VSTAR (versions including affected IPv6 stack). The function that processes the Hop-by-Hop extension header in IPv6 packets and its options lacks any checks against the length field of the header, allowing attackers to put the function into an infinite loop by supplying arbitrary length values. A vulnerability has been identified in Capital VSTAR (Versions including affected IPv6 stack), Nucleus NET (All versions), Nucleus ReadyStart V3 (All versions < V2017.02.4), Nucleus ReadyStart V4 (All versions < V4.1.0), Nucleus Source Code (Versions including affected IPv6 stack). The function that processes the Hop-by-Hop extension header in IPv6 packets and its options lacks any checks against the length field of the header, allowing attackers to put the function into an infinite loop by supplying arbitrary length values. -
Modified Analysis by [email protected]
Nov. 11, 2021
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:siemens:nucleus_4:*:*:*:*:*:*:*:* versions up to (excluding) 4.1.0 *cpe:2.3:a:siemens:nucleus_net:*:*:*:*:*:*:*:* *cpe:2.3:a:siemens:nucleus_readystart:*:*:*:*:*:*:*:* *cpe:2.3:a:siemens:nucleus_source_code:-:*:*:*:*:*:*:* *cpe:2.3:a:siemens:vstar:-:*:*:*:*:*:*:* OR *cpe:2.3:a:siemens:capital_vstar:-:*:*:*:*:*:*:* *cpe:2.3:a:siemens:nucleus_net:*:*:*:*:*:*:*:* *cpe:2.3:a:siemens:nucleus_readystart:*:*:*:*:*:*:*:* *cpe:2.3:a:siemens:nucleus_source_code:-:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Nov. 10, 2021
Action Type Old Value New Value Changed Description A vulnerability has been identified in Capital VSTAR (Versions including affected IPv6 stack), Nucleus NET (All versions), Nucleus ReadyStart V3 (All versions < V2017.02.4), Nucleus ReadyStart V4 (All versions < V4.1.0), Nucleus Source Code (Versions including affected IPv6 stack). The function that processes the Hop-by-Hop extension header in IPv6 packets and its options lacks any checks against the length field of the header, allowing attackers to put the function into an infinite loop by supplying arbitrary length values. A vulnerability has been identified in Nucleus 4 (All versions < V4.1.0), Nucleus NET (All versions), Nucleus ReadyStart (All versions), Nucleus Source Code (versions including affected IPv6 stack), VSTAR (versions including affected IPv6 stack). The function that processes the Hop-by-Hop extension header in IPv6 packets and its options lacks any checks against the length field of the header, allowing attackers to put the function into an infinite loop by supplying arbitrary length values. -
CVE Modified by [email protected]
Nov. 09, 2021
Action Type Old Value New Value Changed Description A vulnerability has been identified in Nucleus 4 (All versions < V4.1.0), Nucleus NET (All versions), Nucleus ReadyStart (All versions), Nucleus Source Code (versions including affected IPv6 stack), VSTAR (versions including affected IPv6 stack). The function that processes the Hop-by-Hop extension header in IPv6 packets and its options lacks any checks against the length field of the header, allowing attackers to put the function into an infinite loop by supplying arbitrary length values. A vulnerability has been identified in Capital VSTAR (Versions including affected IPv6 stack), Nucleus NET (All versions), Nucleus ReadyStart V3 (All versions < V2017.02.4), Nucleus ReadyStart V4 (All versions < V4.1.0), Nucleus Source Code (Versions including affected IPv6 stack). The function that processes the Hop-by-Hop extension header in IPv6 packets and its options lacks any checks against the length field of the header, allowing attackers to put the function into an infinite loop by supplying arbitrary length values. -
Initial Analysis by [email protected]
Apr. 30, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:N/A:P) 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://cert-portal.siemens.com/productcert/pdf/ssa-248289.pdf No Types Assigned https://cert-portal.siemens.com/productcert/pdf/ssa-248289.pdf Vendor Advisory Changed Reference Type https://us-cert.cisa.gov/ics/advisories/icsa-21-103-05 No Types Assigned https://us-cert.cisa.gov/ics/advisories/icsa-21-103-05 Third Party Advisory, US Government Resource Added CPE Configuration OR *cpe:2.3:a:siemens:nucleus_4:*:*:*:*:*:*:*:* versions up to (excluding) 4.1.0 *cpe:2.3:a:siemens:nucleus_net:*:*:*:*:*:*:*:* *cpe:2.3:a:siemens:nucleus_readystart:*:*:*:*:*:*:*:* *cpe:2.3:a:siemens:nucleus_source_code:-:*:*:*:*:*:*:* *cpe:2.3:a:siemens:vstar:-:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Apr. 23, 2021
Action Type Old Value New Value Added Reference https://us-cert.cisa.gov/ics/advisories/icsa-21-103-05 [No Types Assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-25664 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-2021-25664
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.18 }} 0.07%
score
0.54065
percentile