CVE-2013-5469
The TCP implementation in Cisco IOS does not properly implement the transitions from the ESTABLISHED state to the CLOSED state, which allows remote attackers to cause a denial of service (flood of ACK packets) via a crafted series of ACK and FIN…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.36%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
The TCP implementation in Cisco IOS does not properly implement the transitions from the ESTABLISHED state to the CLOSED state, which allows remote attackers to cause a denial of service (flood of ACK packets) via a crafted series of ACK and FIN packets, aka Bug ID CSCtz14399.
- CVSS 2.0
- 7.1 HIGHAV:N/AC:M/Au:N/C:N/I:N/A:C
- EPSS
- 2.36% probability · 83th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-119
- Affected
- cisco/ios
- Source
- psirt@cisco.com
References
- http://osvdb.org/96764
- http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-5469Vendor Advisory
- http://www.securityfocus.com/bid/62083
- http://www.securitytracker.com/id/1028969
- https://exchange.xforce.ibmcloud.com/vulnerabilities/86794
- http://osvdb.org/96764
- http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-5469Vendor Advisory
- http://www.securityfocus.com/bid/62083
- http://www.securitytracker.com/id/1028969
- https://exchange.xforce.ibmcloud.com/vulnerabilities/86794
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.