CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
4.6 | $0-$5k | 0.00 |
A vulnerability was found in Cisco IOS XR 5.0.1 (Router Operating System) and classified as problematic. This issue affects an unknown functionality of the component telnetd. 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. The summary by CVE is:
telnetd in Cisco IOS XR 5.0.1 on Network Convergence System 6000 devices allows remote attackers to cause a denial of service (device reload) via a malformed TELNET packet, aka Bug ID CSCuq31566.
The weakness was shared 06/10/2015 with Cisco as 39293 as confirmed vulnerability alert (Website). It is possible to read the advisory at tools.cisco.com. The identification of this vulnerability is CVE-2015-0776 since 01/07/2015. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available.
Applying a patch is able to eliminate this problem.Addressing this vulnerability is possible by firewalling tcp/23 (telnet). The best possible mitigation is suggested to be patching the affected component.
The vulnerability is also documented in the vulnerability database at X-Force (103745).
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: 5.3VulDB Meta Temp Score: 4.6
VulDB Base Score: 5.3
VulDB Temp Score: 4.6
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
AV | AC | Au | C | I | A |
---|---|---|---|---|---|
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
---|---|---|---|---|---|
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
ATT&CK: Unknown
Local: No
Remote: Yes
Availability: 🔍
Status: Unproven
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: PatchStatus: 🔍
0-Day Time: 🔍
Firewalling: 🔍
Timeline
01/07/2015 🔍06/10/2015 🔍
06/10/2015 🔍
06/10/2015 🔍
06/11/2015 🔍
06/11/2015 🔍
06/11/2015 🔍
06/12/2015 🔍
06/30/2017 🔍
Sources
Vendor: cisco.comAdvisory: 39293
Organization: Cisco
Status: Confirmed
CVE: CVE-2015-0776 (🔍)
X-Force: 103745 - Cisco IOS XR denial of service
SecurityTracker: 1032560 - Cisco IOS XR Telnet Processing Flaw Lets Remote Users Deny Service
Vulnerability Center: 50528 - Cisco IOS XR Remote DoS due to Improper Processing of Malformed telnet Packet, Medium
SecurityFocus: 75120 - Cisco IOS XR Software 'telnetd' Process Denial of Service Vulnerability
scip Labs: https://www.scip.ch/en/?labs.20150108
Entry
Created: 06/11/2015 11:12Updated: 06/30/2017 05:58
Changes: 06/11/2015 11:12 (68), 06/30/2017 05:58 (3)
Complete: 🔍
No comments yet. Languages: en.
Please log in to comment.