CVE-2024-20337
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N
Summary
A vulnerability in the SAML authentication process of Cisco Secure Client could allow an unauthenticated, remote attacker to conduct a carriage return line feed (CRLF) injection attack against a user. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by persuading a user to click a crafted link while establishing a VPN session. A successful exploit could allow the attacker to execute arbitrary script code in the browser or access sensitive, browser-based information, including a valid SAML token. The attacker could then use the token to establish a remote access VPN session with the privileges of the affected user. Individual hosts and services behind the VPN headend would still need additional credentials for successful access.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Cisco | Cisco Secure Client | 4.9.00086 | affected |
| Cisco | Cisco Secure Client | 4.9.01095 | affected |
| Cisco | Cisco Secure Client | 4.9.02028 | affected |
| Cisco | Cisco Secure Client | 4.9.03047 | affected |
| Cisco | Cisco Secure Client | 4.9.03049 | affected |
| Cisco | Cisco Secure Client | 4.9.04043 | affected |
| Cisco | Cisco Secure Client | 4.9.04053 | affected |
| Cisco | Cisco Secure Client | 4.9.05042 | affected |
| Cisco | Cisco Secure Client | 4.9.06037 | affected |
| Cisco | Cisco Secure Client | 4.10.00093 | affected |
| Cisco | Cisco Secure Client | 4.10.01075 | affected |
| Cisco | Cisco Secure Client | 4.10.02086 | affected |
| Cisco | Cisco Secure Client | 4.10.03104 | affected |
| Cisco | Cisco Secure Client | 4.10.04065 | affected |
| Cisco | Cisco Secure Client | 4.10.04071 | affected |
| Cisco | Cisco Secure Client | 4.10.05085 | affected |
| Cisco | Cisco Secure Client | 4.10.05095 | affected |
| Cisco | Cisco Secure Client | 4.10.05111 | affected |
| Cisco | Cisco Secure Client | 4.10.06079 | affected |
| Cisco | Cisco Secure Client | 4.10.06090 | affected |
| Cisco | Cisco Secure Client | 4.10.07061 | affected |
| Cisco | Cisco Secure Client | 4.10.07062 | affected |
| Cisco | Cisco Secure Client | 4.10.07073 | affected |
| Cisco | Cisco Secure Client | 5.0.00238 | affected |
| Cisco | Cisco Secure Client | 5.0.00529 | affected |
| Cisco | Cisco Secure Client | 5.0.00556 | affected |
| Cisco | Cisco Secure Client | 5.0.01242 | affected |
| Cisco | Cisco Secure Client | 5.0.02075 | affected |
| Cisco | Cisco Secure Client | 5.0.03072 | affected |
| Cisco | Cisco Secure Client | 5.0.03076 | affected |
| Cisco | Cisco Secure Client | 5.0.04032 | affected |
| Cisco | Cisco Secure Client | 5.0.05040 | affected |
| Cisco | Cisco Secure Client | 5.1.0.136 | affected |
| Cisco | Cisco Secure Client | 5.1.1.42 | affected |
Weaknesses
- CWE-93: Improper Neutralization of CRLF Sequences ('CRLF Injection')
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: total
CVE Program Container
Additional References
References
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