Multiple vulnerabilities in Cisco Identity Services Engine
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 3 |
| CVE-ID | CVE-2018-0277 CVE-2018-0289 CVE-2018-0327 |
| CWE-ID | CWE-295 CWE-79 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software |
Cisco Identity Services Engine (ISE) Server applications / Other server solutions |
| Vendor | Cisco Systems, Inc |
Security Bulletin
This security bulletin contains information about 3 vulnerabilities.
1) Improper certificate validation
EUVDB-ID: #VU12786
Risk: Low
CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2018-0277
CWE-ID:
CWE-295 - Improper Certificate Validation
Exploit availability: No
DescriptionThe vulnerability allows a remote unauthenticated attacker to cause DoS condition on the target system.
The weakness exists in the Extensible Authentication Protocol-Transport Layer Security (EAP-TLS) certificate validation during EAP authentication due to incomplete input validation of the client EAP-TLS certificate. A remote attacker can initiate EAP authentication over TLS to the ISE with a specially crafted EAP-TLS certificate and cause the service to crash.
Update to version 2.2(0.905).
Vulnerable software versionsCisco Identity Services Engine (ISE): 2.0.0.306 - 2.2.0.470
CPE2.3- cpe:2.3:a:cisco_systems:cisco_identity_services_engine:2.0.0.306:*:*:*:*:*:*:*
- cpe:2.3:a:cisco_systems:cisco_identity_services_engine:2.0.1.130:*:*:*:*:*:*:*
- cpe:2.3:a:cisco_systems:cisco_identity_services_engine:2.1.0.474:*:*:*:*:*:*:*
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180516-iseeap
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
2) Cross-site scripting
EUVDB-ID: #VU12787
Risk: Low
CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear]
CVE-ID: CVE-2018-0289
CWE-ID:
CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The weakness exists due to insufficient sanitization of user-supplied data. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
MitigationUpdate to version 2.4(0.357).
Vulnerable software versionsCisco Identity Services Engine (ISE): 2.3.0.298 - 2.4.0.223
CPE2.3- cpe:2.3:a:cisco_systems:cisco_identity_services_engine:2.3.0.298:*:*:*:*:*:*:*
- cpe:2.3:a:cisco_systems:cisco_identity_services_engine:2.4.0.223:*:*:*:*:*:*:*
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180516-ise-xss
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
3) Cross-site scripting
EUVDB-ID: #VU12789
Risk: Low
CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear]
CVE-ID: CVE-2018-0327
CWE-ID:
CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The weakness exists in the web framework due to insufficient sanitization of user-supplied data. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
MitigationInstall update from vendor's website.
Vulnerable software versionsCisco Identity Services Engine (ISE): 2.1.0.905
CPE2.3 External linkshttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180516-ident-se-xss
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
