Cisco ASR 5000 20.2.3/20.2.3.65026 ipsecmgr IKEv2 Packet memory corruption
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
7.3 | $0-$5k | 0.00 |
A vulnerability classified as critical has been found in Cisco ASR 5000 20.2.3/20.2.3.65026 (Router Operating System). This affects some unknown processing of the component ipsecmgr. The manipulation as part of a IKEv2 Packet leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on availability.
The bug was discovered 12/07/2016. The weakness was presented 12/07/2016 with Cisco as cisco-sa-20161207-asr1 as confirmed advisory (Website). It is possible to read the advisory at tools.cisco.com. This vulnerability is uniquely identified as CVE-2016-9203 since 11/06/2016. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available. The advisory points out:
The vulnerability is due to a race condition in the IKEv2 negotiation logic. An attacker could exploit this vulnerability by sending crafted IKEv2 packets during a negotiation. An exploit could allow the attacker to cause a crash of the ipsecmgr process, which will restart on its own. Only the connection being negotiated will need to re-establish.
Applying a patch is able to eliminate this problem. A possible mitigation has been published immediately after the disclosure of the vulnerability.
See 94025 for similar entry.
Product
Type
Vendor
Name
Version
License
Support
- end of life (old version)
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
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CVSSv3
VulDB Meta Base Score: 7.5VulDB Meta Temp Score: 7.3
VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 7.5
NVD Vector: 🔍
CVSSv2
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Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔍
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Exploiting
Class: Memory corruptionCWE: CWE-119
ATT&CK: Unknown
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
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Today | unlock | unlock | unlock | unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: PatchStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Timeline
11/06/2016 🔍12/07/2016 🔍
12/07/2016 🔍
12/07/2016 🔍
12/07/2016 🔍
12/09/2016 🔍
12/10/2016 🔍
12/13/2016 🔍
10/05/2022 🔍
Sources
Vendor: cisco.comAdvisory: cisco-sa-20161207-asr1
Organization: Cisco
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2016-9203 (🔍)
SecurityTracker: 1037413
SecurityFocus: 94790 - Cisco ASR 5000 Series Software CVE-2016-9203 Denial of Service Vulnerability
See also: 🔍
Entry
Created: 12/10/2016 18:27Updated: 10/05/2022 13:30
Changes: 12/10/2016 18:27 (60), 06/23/2019 09:40 (13), 10/05/2022 13:30 (4)
Complete: 🔍
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