Vulnerability Name:

CVE-2022-20697 (CCN-224216)

Assigned:2021-11-02
Published:2022-04-13
Updated:2022-04-26
Summary:A vulnerability in the web services interface of Cisco IOS Software and Cisco IOS XE Software could allow an authenticated, remote attacker to cause a denial of service (DoS) condition. This vulnerability is due to improper resource management in the HTTP server code. An attacker could exploit this vulnerability by sending a large number of HTTP requests to an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.
CVSS v3 Severity:8.6 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H)
7.5 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Changed
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
8.6 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H)
7.5 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Changed
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
CVSS v2 Severity:6.8 Medium (CVSS v2 Vector: AV:N/AC:L/Au:S/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
7.8 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Type:CWE-772
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2022-20697

Source: XF
Type: UNKNOWN
cisco-cve202220697-dos(224216)

Source: CCN
Type: Cisco Security Advisory cisco-sa-http-dos-svOdkdBS
Cisco IOS and IOS XE Software Web Services Denial of Service Vulnerability

Source: CISCO
Type: Vendor Advisory
20220413 Cisco IOS and IOS XE Software Web Services Denial of Service Vulnerability

Vulnerable Configuration:Configuration 1:
  • cpe:/o:cisco:ios:15.1(3)svr1:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios:15.1(3)svr2:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios:15.1(3)svr3:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios:15.1(3)svs:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios:15.1(3)svs1:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios:15.1(3)svt1:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios:15.1(3)svt2:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios:15.1(3)svt3:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios:15.1(3)svu1:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios:15.1(3)svu2:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios:15.1(3)svu10:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios:15.1(3)svv1:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios:15.2(7)e3:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios:15.2(7)e3a:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios:15.2(7)e3k:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios:15.2(7)e4:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios:15.2(8)e:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios:15.2(234k)e:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios:15.3(3)jk100:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios:15.3(3)jpj8:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios:15.9(3)m2:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios:15.9(3)m2a:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios:15.9(3)m3:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios:15.9(3)m3a:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios:15.9(3)m3b:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios:15.9(3)m4:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:3.11.3ae:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:3.11.3e:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:3.11.4e:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/o:cisco:ios_software:*:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe_software:*:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    cisco ios 15.1(3)svr1
    cisco ios 15.1(3)svr2
    cisco ios 15.1(3)svr3
    cisco ios 15.1(3)svs
    cisco ios 15.1(3)svs1
    cisco ios 15.1(3)svt1
    cisco ios 15.1(3)svt2
    cisco ios 15.1(3)svt3
    cisco ios 15.1(3)svu1
    cisco ios 15.1(3)svu2
    cisco ios 15.1(3)svu10
    cisco ios 15.1(3)svv1
    cisco ios 15.2(7)e3
    cisco ios 15.2(7)e3a
    cisco ios 15.2(7)e3k
    cisco ios 15.2(7)e4
    cisco ios 15.2(8)e
    cisco ios 15.2(234k)e
    cisco ios 15.3(3)jk100
    cisco ios 15.3(3)jpj8
    cisco ios 15.9(3)m2
    cisco ios 15.9(3)m2a
    cisco ios 15.9(3)m3
    cisco ios 15.9(3)m3a
    cisco ios 15.9(3)m3b
    cisco ios 15.9(3)m4
    cisco ios xe 3.11.3ae
    cisco ios xe 3.11.3e
    cisco ios xe 3.11.4e
    cisco ios software *
    cisco ios xe software *