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CVE-2020-3125— Cisco Adaptive Security Appliance Software Kerberos Authentication Bypass Vulnerability

Quick assessment

Affected
Cisco Cisco Adaptive Security Appliance (ASA) 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 Adaptive Security Appliances Software（ASA Software）是美国思科（Cisco）公司的一套防火墙和网络安全平台。该平台提供了对数据和网络资源的高度安全的访问等功能。 Cisco ASA Software中存在授权问题漏洞，该漏洞源于在接收到身份验证成功的响应时，程序没有对KDC进行充分的身份验证。攻击者可利用该漏洞绕过Kerberos身份验证。以下产品及版本受到影响：Cisco ASA Software 9.6及之前版本，9.7版本，9.8版本，9

AI Predicted 9.8 Difficulty: Moderate EPSS 2.42% · P84
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I. Basic Information for CVE-2020-3125

Vulnerability Information
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Vulnerability Title
Cisco Adaptive Security Appliance Software Kerberos Authentication Bypass Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the Kerberos authentication feature of Cisco Adaptive Security Appliance (ASA) Software could allow an unauthenticated, remote attacker to impersonate the Kerberos key distribution center (KDC) and bypass authentication on an affected device that is configured to perform Kerberos authentication for VPN or local device access. The vulnerability is due to insufficient identity verification of the KDC when a successful authentication response is received. An attacker could exploit this vulnerability by spoofing the KDC server response to the ASA device. This malicious response would not have been authenticated by the KDC. A successful attack could allow an attacker to bypass Kerberos authentication.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
认证机制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco Adaptive Security Appliances Software 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Adaptive Security Appliances Software（ASA Software）是美国思科（Cisco）公司的一套防火墙和网络安全平台。该平台提供了对数据和网络资源的高度安全的访问等功能。 Cisco ASA Software中存在授权问题漏洞，该漏洞源于在接收到身份验证成功的响应时，程序没有对KDC进行充分的身份验证。攻击者可利用该漏洞绕过Kerberos身份验证。以下产品及版本受到影响：Cisco ASA Software 9.6及之前版本，9.7版本，9.8版本，9
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 Adaptive Security Appliance (ASA) Software n/a -

II. Public POCs for CVE-2020-3125

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III. Intelligence Information for CVE-2020-3125

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Vendor Advisories for CVE-2020-3125 (1)

Same Patch Batch · Cisco · 2020-05-06 · 35 CVEs total

CVE-2020-3298 Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Malformed
CVE-2020-3246 Cisco Umbrella Carriage Return Line Feed Injection Vulnerability
CVE-2020-3253 Cisco Firepower Threat Defense Software Shell Access Vulnerability
CVE-2020-3254 Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Media Gat
CVE-2020-3255 Cisco Firepower Threat Defense Software Packet Flood Denial of Service Vulnerability
CVE-2020-3256 Cisco Hosted Collaboration Mediation Fulfillment XML External Expansion Vulnerability
CVE-2020-3259 Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Servi
CVE-2020-3283 Cisco Firepower 1000 Series SSL/TLS Denial of Service Vulnerability
CVE-2020-3285 Cisco Firepower Threat Defense Software SSL/TLS URL Category Bypass Vulnerability
CVE-2020-3196 Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software SSL/TLS D
CVE-2020-3301 Cisco Firepower Management Center Static Credential Vulnerabilities
CVE-2020-3302 Cisco Firepower Management Center File Overwrite Vulnerability
CVE-2020-3303 Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software IKEv1 Den
CVE-2020-3305 Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software BGP Denia
CVE-2020-3306 Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software DHCP Deni
CVE-2020-3307 Cisco Firepower Management Center Arbitrary Log File Write Vulnerability
CVE-2020-3308 Cisco Firepower Threat Defense Software Signature Verification Bypass Vulnerability
CVE-2020-3318 Cisco Firepower Management Center Static Credential Vulnerabilities
CVE-2020-3178 Cisco Content Security Management Appliance Open Redirect Vulnerabilities
CVE-2020-3179 Cisco Firepower Threat Defense Software Generic Routing Encapsulation Tunnel IPv6 Denial o

Showing top 20 of 35 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Cisco Adaptive Security Appliance (ASA) Software
Same vendor: Cisco
Same weakness: CWE-287

V. Comments for CVE-2020-3125

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