Multiple Vulnerabilities in Cisco Emergency Responder
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 3 |
| CVE-ID | CVE-2017-9793 CVE-2017-9804 CVE-2017-9805 |
| CWE-ID | CWE-20 CWE-502 |
| Exploitation vector | Network |
| Public exploit | Vulnerability #3 is being exploited in the wild. |
| Vulnerable software Subscribe |
Cisco Emergency Responder Other software / Other software solutions |
| Vendor | Cisco Systems, Inc |
Security Bulletin
This security bulletin contains information about 3 vulnerabilities.
1) Denial of service
EUVDB-ID: #VU8112
Risk: Low
CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]
CVE-ID: CVE-2017-9793
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to cause DoS condition.
The weakness exists due to an error when using outdated XStream library with the Struts REST plugin. A remote attacker can send a a specially crafted request with XML payload and cause the application to crash.
Successful exploitation of the vulnerability results in denial of service.
Install update from vendor's website.
Vulnerable software versionsCisco Emergency Responder: 12.5.0.98000.3
External linkshttp://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170907-struts2
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) Denial of service
EUVDB-ID: #VU8114
Risk: Low
CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]
CVE-ID: CVE-2017-9804
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to cause DoS condition.
The weakness exists due to server process overload when performing validation of the URL. A remote attacker can supply a specially crafted URL in a form field to trigger an error in regular expression (regex) processin, consume excessive CPU resources and cause the application to crash.
Successful exploitation of the vulnerability results in denial of service.
Install update from vendor's website.
Vulnerable software versionsCisco Emergency Responder: 12.5.0.98000.3
External linkshttp://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170907-struts2
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) Deserialization of untrusted data
EUVDB-ID: #VU8111
Risk: High
CVSSv3.1: 8.6 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H/E:H/RL:O/RC:C]
CVE-ID: CVE-2017-9805
CWE-ID:
CWE-502 - Deserialization of Untrusted Data
Exploit availability: Yes
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the server.
The weakness exists due to absent filtration in XStream instance when deserializing XML data within the REST Plugin. A remote attacker can upload a specially crafted XML file to vulnerable Apache Struts installation, trigger the XStreamHandler to process malicious XML payload and execute arbitrary core on the target system.
Successful exploitation of the vulnerability is possible in case the attacker is able to upload XML.
Install update from vendor's website.
Vulnerable software versionsCisco Emergency Responder: 12.5.0.98000.3
External linkshttp://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170907-struts2
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?
Yes. This vulnerability is being exploited in the wild.
