4.9
MEDIUM
CVE-2015-4277
Cisco ASR 9000 Vty Session Denial of Service Vulnerability
Description

The global-configuration implementation on Cisco ASR 9000 devices with software 5.1.3 and 5.3.0 improperly closes vty sessions after a commit/end operation, which allows local users to cause a denial of service (tmp/*config file creation, memory consumption, and device hang) via unspecified vectors, aka Bug ID CSCut93842.

INFO

Published Date :

Aug. 19, 2015, 6:59 p.m.

Last Modified :

Nov. 21, 2024, 2:30 a.m.

Remotely Exploitable :

No

Impact Score :

6.9

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2015-4277 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Cisco nx-os
2 Cisco nexus_93120tx
3 Cisco nexus_93128tx
4 Cisco nexus_9332pq
5 Cisco nexus_9336pq_aci_spine
6 Cisco nexus_9372px
7 Cisco nexus_9372tx
8 Cisco nexus_9396px
9 Cisco nexus_9396tx
10 Cisco nexus_9504
11 Cisco nexus_9508
12 Cisco nexus_9516
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2015-4277.

URL Resource
http://tools.cisco.com/security/center/viewAlert.x?alertId=39939 Vendor Advisory
http://www.securitytracker.com/id/1033259
http://tools.cisco.com/security/center/viewAlert.x?alertId=39939 Vendor Advisory
http://www.securitytracker.com/id/1033259

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2015-4277 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2015-4277 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference http://tools.cisco.com/security/center/viewAlert.x?alertId=39939
    Added Reference http://www.securitytracker.com/id/1033259
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Sep. 21, 2017

    Action Type Old Value New Value
    Added Reference http://www.securitytracker.com/id/1033259 [No Types Assigned]
  • Modified Analysis by [email protected]

    Aug. 20, 2015

    Action Type Old Value New Value
    Added CPE Configuration Configuration 1 AND OR *cpe:2.3:o:cisco:nx-os:5.1.3:*:*:*:*:*:*:* *cpe:2.3:o:cisco:nx-os:5.3.0:*:*:*:*:*:*:* OR cpe:2.3:h:cisco:nexus_9332pq:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9336pq_aci_spine:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9372px:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9372tx:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9396px:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9396tx:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9504:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9508:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9516:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_93120tx:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_93128tx:-:*:*:*:*:*:*:*
    Added CVSS V2 (AV:L/AC:L/Au:N/C:N/I:N/A:C)
    Changed Reference Type http://tools.cisco.com/security/center/viewAlert.x?alertId=39939 No Types Assigned http://tools.cisco.com/security/center/viewAlert.x?alertId=39939 Advisory
    Added CWE CWE-399
  • Initial Analysis by [email protected]

    Aug. 20, 2015

    Action Type Old Value New Value
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2015-4277 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2015-4277 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.04 }} 0.00%

score

0.05635

percentile

CVSS2 - Vulnerability Scoring System
Access Vector
Access Complexity
Authentication
Confidentiality
Integrity
Availability