Cisco IOS 15.5(3)M on ISR800/ISR819/ISR829 SSH Service TCP Packet resource management
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
7.5 | $5k-$25k | 0.00 |
A vulnerability classified as critical was found in Cisco IOS 15.5(3)M on ISR800/ISR819/ISR829 (Router Operating System). Affected by this vulnerability is an unknown code block of the component SSH Service. The manipulation as part of a TCP Packet leads to a resource management vulnerability. The CWE definition for the vulnerability is CWE-399. As an impact it is known to affect availability. The summary by CVE is:
Cisco IOS 15.5(3)M on Integrated Services Router (ISR) 800, 819, and 829 devices allows remote attackers to cause a denial of service (memory consumption) via crafted TCP packets on the SSH port, aka Bug ID CSCuu13476.
The weakness was presented 06/23/2016 with Cisco as CSCuu13476 as confirmed advisory (Website). The advisory is shared at tools.cisco.com. This vulnerability is known as CVE-2015-6289 since 08/17/2015. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 08/24/2022).
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
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: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 7.5VulDB Meta Temp Score: 7.5
VulDB Base Score: 7.5
VulDB Temp Score: 7.5
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 7.5
NVD Vector: 🔍
CVSSv2
AV | AC | Au | C | I | A |
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💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
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Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Resource managementCWE: CWE-399 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍
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 |
OpenVAS ID: 103403
OpenVAS Name: Cisco IOS Software TCP Denial of Service Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
Timeline
08/17/2015 🔍06/20/2016 🔍
06/22/2016 🔍
06/23/2016 🔍
06/23/2016 🔍
08/24/2022 🔍
Sources
Vendor: cisco.comAdvisory: CSCuu13476
Organization: Cisco
Status: Confirmed
CVE: CVE-2015-6289 (🔍)
OVAL: 🔍
SecurityTracker: 1036141
SecurityFocus: 91322 - Cisco IOS and IOS XE Software CVE-2015-6289 Denial of Service Vulnerability
Entry
Created: 06/23/2016 11:39Updated: 08/24/2022 14:21
Changes: 06/23/2016 11:39 (60), 02/09/2019 10:53 (11), 08/24/2022 14:21 (2)
Complete: 🔍
Cache ID: 18:D85
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