Cisco ASR 5000 up to 21.1.R0.65135 IKE Packet Parser resource management

| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 5.2 | $0-$5k | 0.00 |
Summary
A vulnerability classified as problematic was found in Cisco ASR 5000 up to 21.1.R0.65135. This impacts an unknown function of the component IKE Packet Parser. Such manipulation leads to resource management. This vulnerability is traded as CVE-2016-9216. The attack may be launched remotely. There is no exploit available. Upgrading the affected component is advised.
Details
A vulnerability was found in Cisco ASR 5000 up to 21.1.R0.65135 (Router Operating System). It has been rated as problematic. Affected by this issue is an unknown function of the component IKE Packet Parser. The manipulation with an unknown input leads to a resource management vulnerability. Using CWE to declare the problem leads to CWE-399. Impacted is availability. CVE summarizes:
An IKE Packet Parsing Denial of Service Vulnerability in the ipsecmgr process of Cisco ASR 5000 Software could allow an unauthenticated, remote attacker to cause the ipsecmgr process to reload. More Information: CSCuy06917 CSCuy45036 CSCuy59525. Known Affected Releases: 20.0.0 20.0.M0.62842 20.0.v0 20.0.M0.63229 20.1.0 20.1.a0 20.1.v0 21.0.0 21.0.v0. Known Fixed Releases: 20.0.0 20.0.0.63250 20.0.M0.63148 20.0.R0.63294 20.0.R0.63316 20.0.V0.63170 20.0.VG0.63188 20.0.v0 20.0.v0.64175 20.0.vg0.63522 20.1.A0.63166 20.2.A0.63174 20.1.A0.63232 20.2.A0.63237 20.0.M0.63226 20.0.M0.63229 20.0.R0.63294 20.0.R0.63316 20.0.V0.63263 20.0.VG0.63233 20.0.v0 20.0.v0.64175 20.0.vg0.63522 20.1.0 20.1.0.63959 20.1.M0.63876 20.1.T0.63886 20.1.V0.64231 20.1.VA0.64194 20.1.VB0.64210 20.1.a0 20.1.a0.64023 20.1.v0 20.1.v0.64607 20.2.A0.63895 21.0.0 21.0.0.65256 21.0.M0.63881 21.0.M0.64281 21.0.PP0.64366 21.0.V0.65052 21.0.v0 21.0.v0.65831 21.0.vb0.65887 21.1.R0.65130 21.1.R0.65135.
The bug was discovered 01/18/2017. The weakness was shared 01/26/2017 with Cisco as CSCuy06917 / CSCuy45036 / CSCuy59525 as confirmed advisory (Website). The advisory is shared for download at securityfocus.com. This vulnerability is handled as CVE-2016-9216 since 11/06/2016. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available.
The vulnerability was handled as a non-public zero-day exploit for at least 8 days. During that time the estimated underground price was around $5k-$25k.
Upgrading eliminates this vulnerability.
The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 95629†). VulDB is the best source for vulnerability data and more expert information about this specific topic.
Product
Type
Vendor
Name
Version
License
Website
- Vendor: https://www.cisco.com/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 5.3VulDB Meta Temp Score: 5.2
VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 5.3
NVD Vector: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
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| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Resource managementCWE: CWE-399 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Timeline
11/06/2016 🔍01/18/2017 🔍
01/18/2017 🔍
01/26/2017 🔍
01/26/2017 🔍
01/26/2017 🔍
05/14/2026 🔍
Sources
Vendor: cisco.comAdvisory: CSCuy06917 / CSCuy45036 / CSCuy59525⛔
Organization: Cisco
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2016-9216 (🔍)
GCVE (CVE): GCVE-0-2016-9216
GCVE (VulDB): GCVE-100-95984
SecurityFocus: 95629 - Cisco ASR 5000 Series Software CVE-2016-9216 Denial of Service Vulnerability
OSVDB: - CVE-2016-9216 - Cisco - ASR 5000 - Denial of Service Issue
SecurityTracker: 1037652
Entry
Created: 01/26/2017 14:56Updated: 05/14/2026 21:10
Changes: 01/26/2017 14:56 (61), 08/02/2020 08:36 (7), 11/04/2022 08:28 (3), 05/14/2026 21:10 (16)
Complete: 🔍
Cache ID: 216::103
VulDB is the best source for vulnerability data and more expert information about this specific topic.
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