6.5
MEDIUM
CVE-2019-1684
"Cisco IP Phone 7800 and 8800 Series LLDP Packet Header Validation Arbitrary Code Execution"
Description

A vulnerability in the Cisco Discovery Protocol or Link Layer Discovery Protocol (LLDP) implementation for the Cisco IP Phone 7800 and 8800 Series could allow an unauthenticated, adjacent attacker to cause an affected phone to reload unexpectedly, resulting in a temporary denial of service (DoS) condition. The vulnerability is due to missing length validation of certain Cisco Discovery Protocol or LLDP packet header fields. An attacker could exploit this vulnerability by sending a malicious Cisco Discovery Protocol or LLDP packet to the targeted phone. A successful exploit could allow the attacker to cause the affected phone to reload unexpectedly, resulting in a temporary DoS condition. Versions prior to 12.6(1)MN80 are affected.

INFO

Published Date :

Feb. 21, 2019, 8:29 p.m.

Last Modified :

Oct. 16, 2020, 1:12 p.m.

Remotely Exploitable :

No

Impact Score :

3.6

Exploitability Score :

2.8
Affected Products

The following products are affected by CVE-2019-1684 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.

ID Vendor Product Action
1 Cisco ip_phone_8800_firmware
2 Cisco ip_conference_phone_8832_firmware
3 Cisco ip_phone_7800_firmware
4 Cisco ip_phone_7811_firmware
5 Cisco ip_phone_7821_firmware
6 Cisco ip_phone_7841_firmware
7 Cisco ip_phone_7861_firmware
8 Cisco ip_phone_8811_firmware
9 Cisco ip_phone_8841_firmware
10 Cisco ip_phone_8845_firmware
11 Cisco ip_phone_8851_firmware
12 Cisco ip_phone_8861_firmware
13 Cisco ip_phone_8865_firmware
14 Cisco ip_conference_phone_7832_firmware
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-2019-1684.

URL Resource
http://www.securityfocus.com/bid/107104 Third Party Advisory VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190220-cdp-lldp-dos 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-2019-1684 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2019-1684 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
  • Modified Analysis by [email protected]

    Oct. 16, 2020

    Action Type Old Value New Value
    Removed CVSS V3 NIST AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Added CVSS V3.1 NIST AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Removed CWE NIST CWE-399
    Added CWE NIST CWE-119
    Added CPE Configuration AND OR *cpe:2.3:o:cisco:ip_conference_phone_7832_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 12.6\(1\)mn80 OR cpe:2.3:h:cisco:ip_conference_phone_7832:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:cisco:ip_conference_phone_8832_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 12.6\(1\)mn80 OR cpe:2.3:h:cisco:ip_conference_phone_8832:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:cisco:ip_phone_7811_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 12.6\(1\)mn80 OR cpe:2.3:h:cisco:ip_phone_7811:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:cisco:ip_phone_7821_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 12.6\(1\)mn80 OR cpe:2.3:h:cisco:ip_phone_7821:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:cisco:ip_phone_7841_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 12.6\(1\)mn80 OR cpe:2.3:h:cisco:ip_phone_7841:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:cisco:ip_phone_7861_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 12.6\(1\)mn80 OR cpe:2.3:h:cisco:ip_phone_7861:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:cisco:ip_phone_8811_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 12.6\(1\)mn80 OR cpe:2.3:h:cisco:ip_phone_8811:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:cisco:ip_phone_8841_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 12.6\(1\)mn80 OR cpe:2.3:h:cisco:ip_phone_8841:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:cisco:ip_phone_8845_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 12.6\(1\)mn80 OR cpe:2.3:h:cisco:ip_phone_8845:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:cisco:ip_phone_8851_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 12.6\(1\)mn80 OR cpe:2.3:h:cisco:ip_phone_8851:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:cisco:ip_phone_8861_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 12.6\(1\)mn80 OR cpe:2.3:h:cisco:ip_phone_8861:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:cisco:ip_phone_8865_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 12.6\(1\)mn80 OR cpe:2.3:h:cisco:ip_phone_8865:-:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Oct. 09, 2019

    Action Type Old Value New Value
    Added CVSS V3 Cisco Systems, Inc. AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Added CWE Cisco Systems, Inc. CWE-399
  • Initial Analysis by [email protected]

    Feb. 22, 2019

    Action Type Old Value New Value
    Added CVSS V2 (AV:A/AC:L/Au:N/C:N/I:N/A:C)
    Added CVSS V3 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-20190220-cdp-lldp-dos No Types Assigned https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190220-cdp-lldp-dos Vendor Advisory
    Changed Reference Type http://www.securityfocus.com/bid/107104 No Types Assigned http://www.securityfocus.com/bid/107104 Third Party Advisory, VDB Entry
    Added CWE CWE-399
    Added CPE Configuration AND OR *cpe:2.3:o:cisco:ip_phone_8800_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 12.6\(1\)mn80 OR cpe:2.3:h:cisco:ip_phone_8800:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:cisco:ip_phone_7800_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 12.6\(1\)mn80 OR cpe:2.3:h:cisco:ip_phone_7800:-:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Feb. 22, 2019

    Action Type Old Value New Value
    Added Reference http://www.securityfocus.com/bid/107104 [No Types Assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.05 }} -0.01%

score

0.22113

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
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Scope
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