Urgent Security Updates: Cisco and VMware Address Critical Vulnerabilities
Vulnerabilities mentionedAll →
| CVE | Vulnerability | CVSS | EPSS | Flags | Affected | Exposure | Published |
|---|---|---|---|---|---|---|---|
| CVE-2023-20192 +1 in the same advisory: …20105 | Multiple vulnerabilities in Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) could allow an authenticated attacker with Administr Multiple vulnerabilities in Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) could allow an authenticated attacker with Administrator-level read-only credentials to elevate their privileges to Administrator with read-write credentials on an affected system. Note: "Cisco Expressway Series" refers to Cisco Expressway Control (Expressway-C) devices and Cisco Expressway Edge (Expressway-E) devices. For more information about these vulnerabilities, see the Details section of this advisory. NVD description · AI analysis pending | 7.7 group max | <1% |
| — | ||
| CVE-2023-20887 | Unauthenticated Command Injection RCE in VMware Aria Operations for Networks VMware Aria Operations for Networks (formerly vRealize Network Insight) contains a command injection flaw (CWE-77) that allows an attacker with network access to the appliance to run arbitrary operating-system commands. Because the attack requires no authentication, privileges, or user interaction (CVSS:3.1/AV:N/AC:L/PR:N/UI:N), any party able to reach the product's network interface can trigger it, gaining remote code execution with high impact on confidentiality, integrity, and availability. Any organization running the product is affected, with internet-facing deployments at the greatest risk. Exploitation is confirmed in the wild — CISA added the flaw to the KEV catalog on 2023-06-22, a public proof-of-concept exploit is available, and EPSS puts the 30-day exploitation probability at 98.3% (top percentile). Ransomware use is currently unknown. Do: Apply the vendor's patched update to all Aria Operations for Networks deployments as soon as possible — this is also CISA's required KEV action (apply updates per vendor instructions); verify the installed build against VMware's advisory for affected ranges. Until patching is complete, restrict network access to the appliance (firewall rules, VPN, or management-segment isolation), prioritizing any instance reachable from the internet since no authentication is required to exploit. Hunt for indicators of command injection exploitation, as in-the-wild exploitation has been confirmed. | 9.8 | 98% | KEV PoC |
| moderate≈10,000+ appliance deployments worldwide (low tens of thousands of appliance nodes); only a small fraction, likely hundreds to low thousands of instances, are… | |
| CVE-2023-20888 +1 in the same advisory: …20889 | Aria Operations for Networks contains an authenticated deserialization vulnerability. Aria Operations for Networks contains an authenticated deserialization vulnerability. A malicious actor with network access to VMware Aria Operations for Networks and valid 'member' role credentials may be able to perform a deserialization attack resulting in remote code execution. NVD description · AI analysis pending | 8.8 group max | 82% |
| — | ||
| CVE-2023-33863 | SerialiseValue in RenderDoc before 1.27 allows an Integer Overflow with a resultant Buffer Overflow. SerialiseValue in RenderDoc before 1.27 allows an Integer Overflow with a resultant Buffer Overflow. 0xffffffff is sign-extended to 0xffffffffffffffff (SIZE_MAX) and then there is an attempt to add 1. NVD description · AI analysis pending | 9.8 group max | 4% | PoC ×3 |
| — |
Full article431 words · extracted from thehackernews.com · click to collapse
Ravie LakshmananJun 08, 2023Network Security / Vulnerability
VMware has released security updates to fix a trio of flaws in Aria Operations for Networks that could result in information disclosure and remote code execution.
The most critical of the three vulnerabilities is a command injection vulnerability tracked as CVE-2023-20887 (CVSS score: 9.8) that could allow a malicious actor with network access to achieve remote code execution.
Also patched by VMware is another deserialization vulnerability (CVE-2023-20888) that's rated 9.1 out of a maximum of 10 on the CVSS scoring system.
"A malicious actor with network access to VMware Aria Operations for Networks and valid 'member' role credentials may be able to perform a deserialization attack resulting in remote code execution," the company said in an advisory.
The third security defect is a high-severity information disclosure bug (CVE-2023-20889, CVSS score: 8.8) that could permit an actor with network access to perform a command injection attack and obtain access to sensitive data.
The three shortcomings, which impact VMware Aria Operations Networks version 6.x, have been remediated in the following versions: 6.2, 6.3, 6.4, 6.5.1, 6.6, 6.7, 6.8, 6.9, and 6.10. There are no workarounds that mitigate the issues.
The alert comes as Cisco shipped fixes for a critical flaw in its Expressway Series and TelePresence Video Communication Server (VCS) that could "allow an authenticated attacker with Administrator-level read-only credentials to elevate their privileges to Administrator with read-write credentials on an affected system."
The privilege escalation flaw (CVE-2023-20105, CVSS score: 9.6), it said, stems from incorrect handling of password change requests, thereby allowing an attacker to alter the passwords of any user on the system, including an administrative read-write user, and then impersonate that user.
A second high-severity vulnerability in the same product (CVE-2023-20192, CVSS score: 8.4) could permit an authenticated, local attacker to execute commands and modify system configuration parameters.
As a workaround for CVE-2023-20192, Cisco is recommending that customers disable CLI access for read-only users. Both issues have been addressed in VCS versions 14.2.1 and 14.3.0, respectively.
While there is no evidence that any of the aforementioned flaws have been abused in the wild, it's highly advised to patch the vulnerabilities as soon as possible to mitigate potential risks.
The advisories also follow the discovery of three security bugs in RenderDoc (CVE-2023-33863, CVE-2023-33864, and CVE-2023-33865), an open-source graphics debugger, that could allow an advisory to gain elevated privileges and execute arbitrary code.
Found this article interesting? Follow us on Google News, Twitter and LinkedIn to read more exclusive content we post.
Text extracted automatically; images, tables and formatting may be missing. Original: https://thehackernews.com/2023/06/urgent-security-updates-cisco-and.html