On March 25, 2021, the OpenSSL Project released a security advisory, OpenSSL Security Advisory [25 March 2021], that disclosed two vulnerabilities. Exploitation of these vulnerabilities could allow an attacker to use a valid non-certificate authority (CA) certificate to act as a CA and sign a certificate for an arbitrary organization, user or device, or to cause a denial of service (DoS) condition. This advisory is available at the following link:https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-openssl-2021-GHY28dJd
On March 25, 2021, the OpenSSL Project released a security advisory, OpenSSL Security Advisory [25 March 2021], that disclosed two vulnerabilities.
Exploitation of these vulnerabilities could allow an attacker to use a valid non-certificate authority (CA) certificate to act as a CA and sign a certificate for an arbitrary organization, user or device, or to cause a denial of service (DoS) condition.
This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-openssl-2021-GHY28dJd
Cisco investigated its product line to determine which products and services may be affected by this vulnerability.
The Vulnerable Products section includes Cisco bug IDs for each product. The bugs will be accessible through the Cisco Bug Search Tool and will contain additional platform-specific information, including workarounds (if available) and fixed software releases.
Any product or service not listed in the Vulnerable Products section of this advisory is to be considered not vulnerable.
The following table lists Cisco products that are affected by the vulnerabilities that are described in this advisory. If a future release date is indicated for software, the date provided represents an estimate based on all information known to Cisco as of the Last Updated date at the top of the advisory. Availability dates are subject to change based on a number of factors, including satisfactory testing results and delivery of other priority features and fixes. If no version or date is listed for an affected component (indicated by a blank field and/or an advisory designation of Interim), customers should refer to the associated Cisco bug(s) for further details. After the advisory is marked Final, customers should refer to the associated Cisco bug(s) for further details.
| Product | Cisco Bug ID | Fixed Release Availability |
|---|---|---|
| Collaboration and Social Media | ||
| Cisco Webex Meetings Server | CSCvx82619 | 4.0MR4 (May 2021) |
| Endpoint Clients and Client Software | ||
| Cisco Webex Meetings for iOS | CSCvx82617 | 41.4 (Feb 2021) 11.4 (Feb 2021) |
| Meraki Products | ||
| Cisco Meraki MS390 | - | Release TBD (May 2021) |
| Network and Content Security Devices | ||
| Cisco Firepower 4100 Series | CSCvx82705 | 2.10.1 (May 2021) 2.9.1 (Jun 2021) 2.11.1 (Oct 2021) |
| Cisco Firepower 9300 Security Appliances | CSCvx82705 | 2.10.1 (May 2021) 2.9.1 (Jun 2021) 2.11.1 (Oct 2021) |
| Cisco Threat Grid Appliance M5 | CSCvx82740 | 2.13.0 (Apr 2021) |
| Cisco Web Security Appliance (WSA) | CSCvx82614 | 14.0 (Jun 2021) |
| Network Management and Provisioning | ||
| Cisco Business Process Automation | CSCvx82587 | 3.1 (Jun 2021) |
| Cisco Connected Pharma | CSCvx82681 | 1.5.7 (May 2021) |
| Cisco Container Platform | CSCvx82677 | 10.0.0 (Apr 2021) |
| Cisco Evolved Programmable Network Manager | CSCvx82652 | 5.1 (April 2021) |
| Cisco Kinetic for Cities | CSCvx82734 | MD 3.5.2.15 (April 2021) |
| Cisco Managed Services Accelerator | CSCvx82693 | 4.0.0 (Jul 2021) |
| Cisco Policy Suite | CSCvx82748 | 21.2 (Aug 2021) |
| Cisco Prime Infrastructure | CSCvx82664 | 3.10 (Sept 2021) 3.9 (May 2021) |
| Cisco Security Manager | CSCvx82670 | CSM 4.24 (Dec 2021) |
| Cisco Virtualized Infrastructure Manager | CSCvx82666 | 4.2 (May 2021) 4.2.1 (July 2021) |
| Routing and Switching - Enterprise and Service Provider | ||
| Cisco 800 Series Industrial Integrated Services Routers (IOx feature) | CSCvx88577 | 15.9(3)M4 (Jul 2021) |
| Cisco IOS XR Software | CSCvx82673 | 7.3.2 (Oct 2021) 7.5.1 (Dec 2021) |
| Cisco IOS and IOS XE Software | CSCvx82754 | 17.6.1 (Jul 2021) 17.3.4 (Jun 2021) 17.4.3 (Dec 2021) |
| Cisco IOx Fog Director | CSCvx82750 | 1.14.3 (Apr 2021) |
| Cisco Nexus 3000 Series Switches (NX-OS 10.1) | CSCvx82861 | 10.1.2 (Apr 2021) |
| Cisco Nexus 9000 Series Switches in standalone NX-OS mode (NX-OS 10.1) | CSCvx82861 | 10.1.2 (Apr 2021) |
| Cisco c800 Series Integrated Services Routers (IOx feature) | CSCvx82752 | 15.9(3)M4 (Jul 2021) |
| Routing and Switching - Small Business | ||
| Cisco 250 Series Smart Switches | CSCvx82728 | 3.2.x (Mar 2022) |
| Cisco 350 Series Managed (SF350 and SG350) Switches | CSCvx82727 | 3.2.x (Mar 2022) |
| Cisco 550X Series Stackable (SF550 and SG550) Managed Switches | CSCvx82727 | 3.2.x (Mar 2022) |
| Cisco Business 250 Series Smart Switches | CSCvx82710 | 3.2.x (Mar 2022) |
| Cisco Business 350 Series Managed Switches | CSCvx82710 | 3.2.x (Mar 2022) |
| Cisco Small Business RV Series RV320 Dual Gigabit WAN VPN Router | CSCvx82720 | None planned |
| Cisco Small Business RV Series RV325 Dual WAN VPN Router | CSCvx82721 | None planned |
| Cisco Small Business RV130 Series VPN Routers | CSCvx82717 | None planned |
| Unified Computing | ||
| Cisco UCS B-Series Blade Servers | CSCvx82644 | 4.2(1) (May 2021) |
| Cisco UCS Standalone C-Series Rack Server - Integrated Management Controller | CSCvx82648 | 4.2(1a) (May 2021) |
| Voice and Unified Communications Devices | ||
| Cisco Computer Telephony Integration Object Server (CTIOS) | CSCvx82605 | 12.6(1) (May 2021) 12.5(1) (May 2021) |
| Cisco IP Conference Phone 7832 with Multiplatform Firmware | CSCvx84316 | 11.3.4 (Jun 2021) |
| Cisco IP Conference Phone 7832 | CSCvx82765 | 14.1.1 (Sept 2021) |
| Cisco IP Conference Phone 8832 with Multiplatform Firmware | CSCvx84321 | 11.3.4 (Jun 2021) |
| Cisco IP Conference Phone 8832 | CSCvx82791 | 14.1.1 (Sept 2021) |
| Cisco IP Phone 6800 Series with Multiplatform Firmware | CSCvx84326 | 11.3.4 (Jun 2021) |
| Cisco IP Phone 7800 Series with Multiplatform Firmware | CSCvx84320 | 11.3.4 (Jun 2021) |
| Cisco IP Phone 8800 Series with Multiplatform Firmware | CSCvx84314 | 11.3.4 (Jun 2021) |
| Cisco IP Phone 8800 Series | CSCvx84332 | 14.1.1 (Sept 2021) |
| Cisco IP Phone 8845 with Multiplatform Firmware | CSCvx84315 | 11.3.4 (Jun 2021) |
| Cisco IP Phone 8845 | CSCvx84323 | 14.1.1 (Sept 2021) |
| Cisco IP Phone 8865 with Multiplatform Firmware | CSCvx84315 | 11.3.4 (Jun 2021) |
| Cisco IP Phone 8865 | CSCvx84323 | 14.1.1 (Sept 2021) |
| Cisco Unified Contact Center Enterprise | CSCvx82605 | 12.6(1) (May 2021) 12.5(1) (May 2021) |
| Cisco Unified Intelligent Contact Management Enterprise | CSCvx82605 | 12.6(1) (May 2021) 12.5(1) (May 2021) |
| Cisco Virtualization Experience Media Edition | CSCvx82792 | 14.0.1 (May 2021) |
| Cisco Webex Hybrid Data Security Node | CSCvx82620 | 2021.02.10.4763 (May 2021) |
| Cisco Webex Room Phone | CSCvx84328 | 1.2(0)SR1 (Aug 2021) |
| Cisco Webex Video Mesh | CSCvx82684 | 2021.04.22.2nnn (Apr 2021) |
| Cisco Webex Wireless Phone | CSCvx84322 | 1.3(0) (Jun 2021) |
| Cisco Wireless IP Phone 8821 | CSCvx82788 | 11.0(6)SR2 (Sept 2021) |
| Video, Streaming, TelePresence, and Transcoding Devices | ||
| Cisco Meeting Server | CSCvx82685 | 3.2.1 (May 2021) 3.1.3 (May 2021) |
| Cisco TelePresence MX and SX Series | CSCvy03325 | CE-10.3.2.x (May 2021) CE-9.15.3.x (May 2021) |
| Cisco Video Surveillance Media Server | CSCvx82708 | VSM-7.14.3 (May 2021) |
| Cisco Webex Board (all models) | CSCvy03325 | CE-10.3.2.x (May 2021) CE-9.15.3.x (May 2021) |
| Cisco Webex DX70 and DX80 | CSCvy03325 | CE-10.3.2.x (May 2021) CE-9.15.3.x (May 2021) |
| Wireless | ||
| Cisco WAP121 Wireless-N Access Point with Single Point Setup | CSCvx82732 | None planned |
| Cisco WAP321 Wireless-N Access Point with Single Point Setup | CSCvx82732 | None planned |
| Cisco WAP371 Wireless-AC/N Access Point with Single Point Setup | CSCvx82730 | None planned |
| Cisco Cloud Hosted Services | ||
| Cisco Cloud Network Automation Provisioner | CSCvx82591 | |
| Cisco Smart Net Total Care - On-Premises | CSCvx82599 | 2.1.1 (May 2021) |
Only products listed in the Vulnerable Products section of this advisory are known to be affected by these vulnerabilities.
Cisco has confirmed that these vulnerabilities do not affect the following products:
Endpoint Clients and Client Software
Meraki Products
Network Application, Service, and Acceleration
Network and Content Security Devices
Network Management and Provisioning
Routing and Switching - Enterprise and Service Provider
Routing and Switching - Small Business
Unified Computing
Voice and Unified Communications Devices
Video, Streaming, TelePresence, and Transcoding Devices
Wireless
Cisco Cloud Hosted Services
OpenSSL contains a vulnerability that could allow an attacker to use a valid non-certificate authority (CA) certificate to act as a CA and sign a certificate for an arbitrary organization, user, or device.
The vulnerability is due to a bypassed check in the validation logic of X.509 certificate chains, resulting in the affected system accepting as valid certificates signed by a non-CA certificate or certificate chain. An attacker can exploit this vulnerability by using any valid certificate or certificate chain to sign a crafted certificate. A successful exploit could allow the attacker to conduct a main-in-the-middle (MiTM) attack and obtain sensitive information (or misreport information) or impersonate an organization, user, or device. Exploitation of this vulnerability could also allow attackers to access networks or assets that are protected by certificate authentication.
This vulnerability has been assigned the following CVE ID:
OpenSSL contains a vulnerability that could allow an attacker to cause a denial of service (DoS) condition on a targeted system.
The vulnerability exists because the affected software incorrectly handles memory structures, leading to a NULL pointer dereference. An attacker could exploit the vulnerability by submitting crafted Transport Layer Security (TLS) packets to an interface of an affected device. A successful exploit could allow the attacker to cause a crash of the TLS server process which could result in a DoS condition on the targeted device.
Note: Only servers that are processing incoming TLSv1.2 packets are affected by this vulnerability.
This vulnerability has been assigned the following CVE ID:
Any workarounds will be documented in the product-specific Cisco bugs, which are identified in the Vulnerable Products section of this advisory.
For information about fixed software releases, consult the Cisco bugs identified in the Vulnerable Products section of this advisory.
When considering software upgrades, customers are advised to regularly consult the advisories for Cisco products, which are available from the Cisco Security Advisories page, to determine exposure and a complete upgrade solution.
In all cases, customers should ensure that the devices to be upgraded contain sufficient memory and confirm that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, customers are advised to contact the Cisco Technical Assistance Center (TAC) or their contracted maintenance providers.
On March 25, 2021, the OpenSSL Project released OpenSSL Security Advisory [25 March 2021] detailing these vulnerabilities.
The Cisco Product Security Incident Response Team (PSIRT) is aware that proof-of-concept exploit code is available for the vulnerability that is described in this advisory and identified by CVE-2021-3449. Cisco PSIRT is not aware of any malicious use of this vulnerability (CVE-2021-3449).
Cisco PSIRT is not aware of exploit code for or any malicious use of the vulnerability identified by CVE-2021-3450.
These vulnerabilities were publicly disclosed by the OpenSSL Software Foundation on March 25, 2021.
To learn about Cisco security vulnerability disclosure policies and publications, see the Security Vulnerability Policy. This document also contains instructions for obtaining fixed software and receiving security vulnerability information from Cisco.
| Version | Description | Section | Status | Date |
|---|---|---|---|---|
| 1.20 | Updated the fixed release availability information for Cisco IOS and IOS XE Software. Removed a duplicate entry for Webex Room Phone. | Vulnerable Products | Final | 2021-SEP-10 |
| 1.19 | Updated Webex Room Phone fixed release. | Vulnerable Products | Final | 2021-AUG-30 |
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