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CVE-2021-1378— Cisco StarOS Denial of Service Vulnerability

Quick assessment

Affected
Cisco Cisco ASR 5000 Series Software
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Cisco StarOS operating system是美国Cisco公司的一个操作系统。为移动分组核心网提供订户管理服务。 Cisco StarOS operating system中存在资源管理错误漏洞，该漏洞源于网络系统或产品对系统资源（如内存、磁盘空间、文件等）的管理不当。

CVSS 5.3 · Medium EPSS 1.50% · P73
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I. Basic Information for CVE-2021-1378

Vulnerability Information
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Vulnerability Title
Cisco StarOS Denial of Service Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the SSH service of the Cisco StarOS operating system could allow an unauthenticated, remote attacker to cause an affected device to stop processing traffic, resulting in a denial of service (DoS) condition. The vulnerability is due to a logic error that may occur under specific traffic conditions. An attacker could exploit this vulnerability by sending a series of crafted packets to an affected device. A successful exploit could allow the attacker to prevent the targeted service from receiving any traffic, which would lead to a DoS condition on the affected device.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco StarOS operating system 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco StarOS operating system是美国Cisco公司的一个操作系统。为移动分组核心网提供订户管理服务。 Cisco StarOS operating system中存在资源管理错误漏洞，该漏洞源于网络系统或产品对系统资源（如内存、磁盘空间、文件等）的管理不当。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Cisco Cisco ASR 5000 Series Software n/a -

II. Public POCs for CVE-2021-1378

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III. Intelligence Information for CVE-2021-1378

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Vendor Advisories for CVE-2021-1378 (1)

Same Patch Batch · Cisco · 2021-02-17 · 6 CVEs total

CVE-2021-1366 7.8 HIGH Cisco AnyConnect Secure Mobility Client for Windows with VPN Posture (HostScan) Module DLL
CVE-2021-1412 6.5 MEDIUM Cisco Identity Services Engine Sensitive Information Disclosure Vulnerabilities
CVE-2021-1416 6.5 MEDIUM Cisco Identity Services Engine Sensitive Information Disclosure Vulnerabilities
CVE-2021-1351 6.1 MEDIUM Cisco Webex Meetings Cross-Site Scripting Vulnerability
CVE-2021-1372 5.5 MEDIUM Cisco Webex Meetings Desktop App and Webex Productivity Tools for Windows Shared Memory In

IV. Related Vulnerabilities

Same product: Cisco ASR 5000 Series Software
Same vendor: Cisco
Same weakness: CWE-400

V. Comments for CVE-2021-1378

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