CVE-2017-12231
Cisco IOS software: Network Address Translation Denial-of-Service
As of , CVE-2017-12231 in Cisco IOS software is on CISA's list of exploited vulnerabilities: CISA listed it on . Our patch-first group: Patch soon.
- Exploited
- Yes: CISA listed it on 3 March 2022
- US federal deadline
- 24 March 202221 days after CISA listed it. US federal civilian agencies must fix it by then.
- Used in ransomware campaigns
- Not known to CISA
- EPSS score
- 0.07Higher than 94% of the CVEs EPSS scores. EPSS estimates the chance of exploitation activity in the next 30 days.
- EPSS when listed
- 0.01 on 3 March 2022EPSS on the day CISA listed it.
- Public exploit
- None foundNeither Metasploit nor Exploit-DB lists one.
- Fix
- No vendor link in CISA's entry
What CISA says to do
Apply updates per vendor instructions.
CISA's required action
What the flaw is
A vulnerability in the implementation of Network Address Translation (NAT) functionality in Cisco IOS could allow an unauthenticated, remote attacker to cause a denial of service.
CISA's description
A vulnerability in the implementation of Network Address Translation (NAT) functionality in Cisco IOS 12.4 through 15.6 could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to the improper translation of H.323 messages that use the Registration, Admission, and Status (RAS) protocol and are sent to an affected device via IPv4 packets. An attacker could exploit this vulnerability by sending a crafted H.323 RAS packet through an affected device. A successful exploit could allow the attacker to cause the affected device to crash and reload, resulting in a DoS condition. This vulnerability affects Cisco devices that are configured to use an application layer gateway with NAT (NAT ALG) for H.323 RAS messages. By default, a NAT ALG is enabled for H.323 RAS messages. Cisco Bug IDs: CSCvc57217.
The CVE record's description, from cisco
- CVE published
- 28 September 2017
- Assigned by
- cisco
- CVSS
- 7.5 High (CVSS 3.1, from CISA-ADP)
- CWE-399
- Resource Management Errors
- CISA SSVC, exploitation
- active
- CISA SSVC, automatable
- yes
- CISA SSVC, technical impact
- partial
Timeline
- The CVE record was published.
- CISA added it to its list of exploited vulnerabilities.
- The US federal deadline to fix it.
IOS software: other exploited entries
| Vulnerability | Product | Our group | Listed | Deadline | EPSS |
|---|---|---|---|---|---|
| CVE-2017-6744SNMP Remote Code Execution | Cisco IOS software | Patch soon | 0.07 | ||
| CVE-2017-12233Common Industrial Protocol Request Denial-of-Service | Cisco IOS software | Patch soon | 0.07 | ||
| CVE-2017-12234Common Industrial Protocol Request Denial-of-Service | Cisco IOS software | Patch soon | 0.07 | ||
| CVE-2017-12235for Cisco Industrial Ethernet Switches PROFINET Denial-of-Service | Cisco IOS software | Patch soon | 0.07 | ||
| CVE-2018-0154Integrated Services Module for VPN Denial-of-Service | Cisco IOS Software | Patch soon | 0.07 | ||
| CVE-2018-0179Denial-of-Service | Cisco IOS Software | Patch soon | 0.05 | ||
| CVE-2018-0180Denial-of-Service | Cisco IOS Software | Patch soon | 0.05 | ||
| CVE-2018-0161Resource Management Errors | Cisco IOS Software | Patch soon | 0.04 | ||
| CVE-2017-12232for Cisco Integrated Services Routers Denial-of-Service | Cisco IOS software | Patch soon | 0.02 |
Read further
- CVE recordcve.org
- NVD entrynvd.nist.gov
- CISA's catalogcisa.gov
- EPSS for this CVEapi.first.org