CVE-2021-1564
Cisco Video Surveillance 7000 Series IP Cameras Cisco Discovery Protocol/LLDP Layer 2 Adjacent Denial of Service Memory Leak
Description
Multiple vulnerabilities in the implementation of the Cisco Discovery Protocol and Link Layer Discovery Protocol (LLDP) for Cisco Video Surveillance 7000 Series IP Cameras could allow an unauthenticated, adjacent attacker to cause a memory leak, which could lead to a denial of service (DoS) condition on an affected device. These vulnerabilities are due to incorrect processing of certain Cisco Discovery Protocol and LLDP packets at ingress time. An attacker could exploit these vulnerabilities by sending crafted Cisco Discovery Protocol or LLDP packets to an affected device. A successful exploit could allow the attacker to cause the affected device to continuously consume memory, which could cause the device to crash and reload, resulting in a DoS condition. Note: Cisco Discovery Protocol and LLDP are Layer 2 protocols. To exploit these vulnerabilities, an attacker must be in the same broadcast domain as the affected device (Layer 2 adjacent).
INFO
Published Date :
June 4, 2021, 5:15 p.m.
Last Modified :
Nov. 7, 2023, 3:28 a.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
2.8
Affected Products
The following products are affected by CVE-2021-1564
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-2021-1564.
| URL | Resource |
|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ipcamera-lldpcdp-mem-yTQDmjRO | 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-2021-1564 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-1564 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]
Nov. 07, 2023
Action Type Old Value New Value Removed CVSS V3 Cisco Systems, Inc. AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Added CVSS V3.1 Cisco Systems, Inc. AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H -
Reanalysis by [email protected]
Aug. 05, 2022
Action Type Old Value New Value Added CWE NIST CWE-401 -
Initial Analysis by [email protected]
Jun. 16, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:A/AC:L/Au:N/C:N/I:N/A:C) Added CVSS V3.1 NIST AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ipcamera-lldpcdp-mem-yTQDmjRO No Types Assigned https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ipcamera-lldpcdp-mem-yTQDmjRO Vendor Advisory Added CPE Configuration AND OR *cpe:2.3:o:cisco:video_surveillance_7530pd_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 2.12.3 OR cpe:2.3:h:cisco:video_surveillance_7530pd:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:cisco:video_surveillance_7070_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 2.12.3 OR cpe:2.3:h:cisco:video_surveillance_7070:-:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-1564 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-2021-1564
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.06 }} 0.01%
score
0.22270
percentile