6.1
MEDIUM
CVE-2014-7997
Cisco Aironet DHCP Implementation Denial of Service Overflow
Description

The DHCP implementation in Cisco IOS on Aironet access points does not properly handle error conditions with short leases and unsuccessful lease-renewal attempts, which allows remote attackers to cause a denial of service (device restart) by triggering a transition into a recovery state that was intended to involve a network-interface restart but actually involves a full device restart, aka Bug ID CSCtn16281.

INFO

Published Date :

Nov. 15, 2014, 2:59 a.m.

Last Modified :

Nov. 21, 2024, 2:18 a.m.

Remotely Exploitable :

No

Impact Score :

6.9

Exploitability Score :

6.5
Affected Products

The following products are affected by CVE-2014-7997 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 ios
2 Cisco aironet_ap1131
3 Cisco aironet_ap1200
4 Cisco aironet_ap1240
5 Cisco aironet_ap1100
6 Cisco aironet_ap1130ag
7 Cisco aironet_ap1230ag
8 Cisco aironet_ap1240ag
9 Cisco aironet_ap1300
10 Cisco aironet_ap1400
11 Cisco aironet_ap350
12 Cisco aironet_ap340
13 Cisco aironet_3600
14 Cisco aironet_3600e
15 Cisco aironet_3600i
16 Cisco aironet_3600p
17 Cisco aironet_1040
18 Cisco aironet_1140
19 Cisco aironet_1260
20 Cisco aironet_3500
21 Cisco aironet_600_office_extend

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-2014-7997 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2014-7997 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/content/CiscoSecurityNotice/CVE-2014-7997
    Added Reference http://www.securitytracker.com/id/1031218
    Added Reference https://exchange.xforce.ibmcloud.com/vulnerabilities/98691
  • CVE Modified by [email protected]

    May. 14, 2024

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

    Sep. 08, 2017

    Action Type Old Value New Value
    Removed Reference http://xforce.iss.net/xforce/xfdb/98691 [No Types Assigned]
    Added Reference https://exchange.xforce.ibmcloud.com/vulnerabilities/98691 [No Types Assigned]
  • CVE Modified by [email protected]

    Jan. 07, 2017

    Action Type Old Value New Value
    Added Reference http://xforce.iss.net/xforce/xfdb/98691 [No Types Assigned]
    Added Reference http://www.securitytracker.com/id/1031218 [No Types Assigned]
  • Initial Analysis by [email protected]

    Nov. 17, 2014

    Action Type Old Value New Value
    Added CPE Configuration Configuration 1 AND OR *cpe:2.3:o:cisco:ios:-:*:*:*:*:*:*:* OR cpe:2.3:h:cisco:aironet_1040:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:aironet_1140:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:aironet_1260:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:aironet_3500:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:aironet_3600:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:aironet_3600e:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:aironet_3600i:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:aironet_3600p:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:aironet_600_office_extend:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:aironet_ap1100:*:*:*:*:*:*:*:* cpe:2.3:h:cisco:aironet_ap1130ag:*:*:*:*:*:*:*:* cpe:2.3:h:cisco:aironet_ap1131:*:*:*:*:*:*:*:* cpe:2.3:h:cisco:aironet_ap1200:*:*:*:*:*:*:*:* cpe:2.3:h:cisco:aironet_ap1230ag:*:*:*:*:*:*:*:* cpe:2.3:h:cisco:aironet_ap1240:*:*:*:*:*:*:*:* cpe:2.3:h:cisco:aironet_ap1240ag:*:*:*:*:*:*:*:* cpe:2.3:h:cisco:aironet_ap1300:*:*:*:*:*:*:*:* cpe:2.3:h:cisco:aironet_ap1400:*:*:*:*:*:*:*:* cpe:2.3:h:cisco:aironet_ap340:*:*:*:*:*:*:*:* cpe:2.3:h:cisco:aironet_ap340:11.21:*:*:*:*:*:*:* cpe:2.3:h:cisco:aironet_ap350:*:*:*:*:*:*:*:* cpe:2.3:h:cisco:aironet_ap350:11.21:*:*:*:*:*:*:*
    Added CVSS V2 (AV:A/AC:L/Au:N/C:N/I:N/A:C)
    Changed Reference Type http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2014-7997 No Types Assigned http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2014-7997 Advisory
    Added CWE CWE-399
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-2014-7997 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-2014-7997 weaknesses.

Exploit Prediction

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

0.38 }} -0.07%

score

0.72549

percentile

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