Vulnerability-Lookup

BDU:2022-00042

Vulnerability from fstec - Published: 22.09.2021

Title

Уязвимость функции AutoReconnect операционной системы Cisco IOS XE, позволяющая нарушителю вызвать отказ в обслуживании

Description

Уязвимость функции AutoReconnect операционных систем Cisco IOS XE и Cisco IOS связана с утечкой памяти. Эксплуатация уязвимости может позволить нарушителю, действующему удаленно, вызвать отказ в обслуживании

Severity ?


                    
                      AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Vendor

Cisco Systems Inc.

Software Name

Cisco IOS

Software Version

15.2(4)E (Cisco IOS), 15.2(5a)E1 (Cisco IOS), 15.2(4)E2 (Cisco IOS), 15.2(4m)E1 (Cisco IOS), 15.2(5)E (Cisco IOS), 15.2(4)E3 (Cisco IOS), 15.2(5)E1 (Cisco IOS), 15.2(4m)E3 (Cisco IOS), 15.2(4n)E2 (Cisco IOS), 15.2(4o)E2 (Cisco IOS), 15.2(4)E4 (Cisco IOS), 15.2(5)E2 (Cisco IOS), 15.2(4p)E1 (Cisco IOS), 15.2(6)E (Cisco IOS), 15.2(5)E2b (Cisco IOS), 15.2(4)E5 (Cisco IOS), 15.2(5)E2c (Cisco IOS), 15.2(4m)E2 (Cisco IOS), 15.2(4o)E3 (Cisco IOS), 15.2(4q)E1 (Cisco IOS), 15.2(6)E0a (Cisco IOS), 15.2(4)E5a (Cisco IOS), 15.2(6)E0c (Cisco IOS), 15.2(1)SY2 (Cisco IOS), 15.2(1)SY3 (Cisco IOS), 15.2(1)SY4 (Cisco IOS), 15.2(1)SY5 (Cisco IOS), 15.2(5)EX (Cisco IOS), 15.3(1)SY (Cisco IOS), 15.3(1)SY1 (Cisco IOS), 15.3(1)SY2 (Cisco IOS), 15.2(4)EC1 (Cisco IOS), 15.2(4)EC2 (Cisco IOS), 15.2(5a)E (Cisco IOS), 15.2(5b)E (Cisco IOS), 15.2(5c)E (Cisco IOS), 15.2(4s)E1 (Cisco IOS), 15.2(7)E (Cisco IOS), 12.2(6)I1 (Cisco IOS), 15.2(6)E1 (Cisco IOS), 15.2(4)E6 (Cisco IOS), 15.2(6)E1a (Cisco IOS), 15.2(4)E7 (Cisco IOS), 15.2(6)E1s (Cisco IOS), 15.2(4)EA (Cisco IOS), 15.2(4)EA1 (Cisco IOS), 15.2(4)EA3 (Cisco IOS), 15.2(5)EA (Cisco IOS), 15.2(4)EA4 (Cisco IOS), 15.2(4)EA2 (Cisco IOS), 15.2(4)EA5 (Cisco IOS), 15.2(4)EA6 (Cisco IOS), 15.2(4)EA7 (Cisco IOS), 15.2(4)EA8 (Cisco IOS), 15.2(4)EA9 (Cisco IOS), 15.2(1)SY6 (Cisco IOS), 15.2(1)SY7 (Cisco IOS), 15.3(0)SY (Cisco IOS), 15.3(3)JC6 (Cisco IOS), 15.3(3)JC8 (Cisco IOS), 15.2(4)E8 (Cisco IOS), до 15.2(7)E4 (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)SVU1 (Cisco IOS), 15.2(1)SY8 (Cisco IOS), 15.2(4)E9 (Cisco IOS), 15.2(4)E10 (Cisco IOS), 15.2(4)E10A (Cisco IOS), 15.2(4)E10B (Cisco IOS), 15.2(4)EA9A (Cisco IOS), 15.2(6)E2 (Cisco IOS), 15.2(6)E2a (Cisco IOS), 15.2(6)E2b (Cisco IOS), 15.2(6)E3 (Cisco IOS), 15.2(6)Eb (Cisco IOS), 15.2(7)E0a (Cisco IOS), 15.2(7)E0b (Cisco IOS), 15.2(7)E0s (Cisco IOS), 15.2(7)E1 (Cisco IOS), 15.2(7)E1a (Cisco IOS), 15.2(7)E2 (Cisco IOS), 15.2(7)E2a (Cisco IOS), 15.2(7)E2b (Cisco IOS), 15.2(7)E3 (Cisco IOS), 15.2(7)E3a (Cisco IOS), 15.2(7)E3k (Cisco IOS), 15.2(7)E5 (Cisco IOS), 15.2(7)E99 (Cisco IOS), 15.2(7a)E0b (Cisco IOS), 15.2(7b)E0b (Cisco IOS), 15.2(8)E (Cisco IOS), 15.2(8)E1 (Cisco IOS), 15.2(234k)E (Cisco IOS)

Possible Mitigations

Использование рекомендаций: https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ikev2-ebFrwMPr

Reference

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ikev2-ebFrwMPr vsfCisco20Security20AdvisoryvscatSecurity20IntelligencevstypeRSSvspCisco20IOS20and20IOS20XE20Software20IKEv220AutoReconnect20Feature20Denial20of20Service20Vulnerabilityvsk1#fs https://nvd.nist.gov/vuln/detail/CVE-2021-1620

CWE

CWE-563, CWE-772

JSON

To clipboard

{
  "CVSS 2.0": "AV:N/AC:M/Au:S/C:N/I:N/A:C",
  "CVSS 3.0": "AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H",
  "CVSS 4.0": null,
  "remediation_\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": null,
  "remediation_\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435": null,
  "\u0412\u0435\u043d\u0434\u043e\u0440 \u041f\u041e": "Cisco Systems Inc.",
  "\u0412\u0435\u0440\u0441\u0438\u044f \u041f\u041e": "15.2(4)E (Cisco IOS), 15.2(5a)E1 (Cisco IOS), 15.2(4)E2 (Cisco IOS), 15.2(4m)E1 (Cisco IOS), 15.2(5)E (Cisco IOS), 15.2(4)E3 (Cisco IOS), 15.2(5)E1 (Cisco IOS), 15.2(4m)E3 (Cisco IOS), 15.2(4n)E2 (Cisco IOS), 15.2(4o)E2 (Cisco IOS), 15.2(4)E4 (Cisco IOS), 15.2(5)E2 (Cisco IOS), 15.2(4p)E1 (Cisco IOS), 15.2(6)E (Cisco IOS), 15.2(5)E2b (Cisco IOS), 15.2(4)E5 (Cisco IOS), 15.2(5)E2c (Cisco IOS), 15.2(4m)E2 (Cisco IOS), 15.2(4o)E3 (Cisco IOS), 15.2(4q)E1 (Cisco IOS), 15.2(6)E0a (Cisco IOS), 15.2(4)E5a (Cisco IOS), 15.2(6)E0c (Cisco IOS), 15.2(1)SY2 (Cisco IOS), 15.2(1)SY3 (Cisco IOS), 15.2(1)SY4 (Cisco IOS), 15.2(1)SY5 (Cisco IOS), 15.2(5)EX (Cisco IOS), 15.3(1)SY (Cisco IOS), 15.3(1)SY1 (Cisco IOS), 15.3(1)SY2 (Cisco IOS), 15.2(4)EC1 (Cisco IOS), 15.2(4)EC2 (Cisco IOS), 15.2(5a)E (Cisco IOS), 15.2(5b)E (Cisco IOS), 15.2(5c)E (Cisco IOS), 15.2(4s)E1 (Cisco IOS), 15.2(7)E (Cisco IOS), 12.2(6)I1 (Cisco IOS), 15.2(6)E1 (Cisco IOS), 15.2(4)E6 (Cisco IOS), 15.2(6)E1a (Cisco IOS), 15.2(4)E7 (Cisco IOS), 15.2(6)E1s (Cisco IOS), 15.2(4)EA (Cisco IOS), 15.2(4)EA1 (Cisco IOS), 15.2(4)EA3 (Cisco IOS), 15.2(5)EA (Cisco IOS), 15.2(4)EA4 (Cisco IOS), 15.2(4)EA2 (Cisco IOS), 15.2(4)EA5 (Cisco IOS), 15.2(4)EA6 (Cisco IOS), 15.2(4)EA7 (Cisco IOS), 15.2(4)EA8 (Cisco IOS), 15.2(4)EA9 (Cisco IOS), 15.2(1)SY6 (Cisco IOS), 15.2(1)SY7 (Cisco IOS), 15.3(0)SY (Cisco IOS), 15.3(3)JC6 (Cisco IOS), 15.3(3)JC8 (Cisco IOS), 15.2(4)E8 (Cisco IOS), \u0434\u043e 15.2(7)E4 (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)SVU1 (Cisco IOS), 15.2(1)SY8 (Cisco IOS), 15.2(4)E9 (Cisco IOS), 15.2(4)E10 (Cisco IOS), 15.2(4)E10A (Cisco IOS), 15.2(4)E10B (Cisco IOS), 15.2(4)EA9A (Cisco IOS), 15.2(6)E2 (Cisco IOS), 15.2(6)E2a (Cisco IOS), 15.2(6)E2b (Cisco IOS), 15.2(6)E3 (Cisco IOS), 15.2(6)Eb (Cisco IOS), 15.2(7)E0a (Cisco IOS), 15.2(7)E0b (Cisco IOS), 15.2(7)E0s (Cisco IOS), 15.2(7)E1 (Cisco IOS), 15.2(7)E1a (Cisco IOS), 15.2(7)E2 (Cisco IOS), 15.2(7)E2a (Cisco IOS), 15.2(7)E2b (Cisco IOS), 15.2(7)E3 (Cisco IOS), 15.2(7)E3a (Cisco IOS), 15.2(7)E3k (Cisco IOS), 15.2(7)E5 (Cisco IOS), 15.2(7)E99 (Cisco IOS), 15.2(7a)E0b (Cisco IOS), 15.2(7b)E0b (Cisco IOS), 15.2(8)E (Cisco IOS), 15.2(8)E1 (Cisco IOS), 15.2(234k)E (Cisco IOS)",
  "\u0412\u043e\u0437\u043c\u043e\u0436\u043d\u044b\u0435 \u043c\u0435\u0440\u044b \u043f\u043e \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044e": "\u0418\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0430\u0446\u0438\u0439:\nhttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ikev2-ebFrwMPr",
  "\u0414\u0430\u0442\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u044f": "22.09.2021",
  "\u0414\u0430\u0442\u0430 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0435\u0433\u043e \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f": "04.01.2022",
  "\u0414\u0430\u0442\u0430 \u043f\u0443\u0431\u043b\u0438\u043a\u0430\u0446\u0438\u0438": "04.01.2022",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": "BDU:2022-00042",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440\u044b \u0434\u0440\u0443\u0433\u0438\u0445 \u0441\u0438\u0441\u0442\u0435\u043c \u043e\u043f\u0438\u0441\u0430\u043d\u0438\u0439 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "CVE-2021-1620",
  "\u0418\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f \u043e\u0431 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430",
  "\u041a\u043b\u0430\u0441\u0441 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043a\u043e\u0434\u0430",
  "\u041d\u0430\u0437\u0432\u0430\u043d\u0438\u0435 \u041f\u041e": "Cisco IOS",
  "\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u041e\u0421 \u0438 \u0442\u0438\u043f \u0430\u043f\u043f\u0430\u0440\u0430\u0442\u043d\u043e\u0439 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b": "Cisco Systems Inc. Cisco IOS 15.2(4)E , Cisco Systems Inc. Cisco IOS 15.2(5a)E1 , Cisco Systems Inc. Cisco IOS 15.2(4)E2 , Cisco Systems Inc. Cisco IOS 15.2(4m)E1 , Cisco Systems Inc. Cisco IOS 15.2(5)E , Cisco Systems Inc. Cisco IOS 15.2(4)E3 , Cisco Systems Inc. Cisco IOS 15.2(5)E1 , Cisco Systems Inc. Cisco IOS 15.2(4m)E3 , Cisco Systems Inc. Cisco IOS 15.2(4n)E2 , Cisco Systems Inc. Cisco IOS 15.2(4o)E2 , Cisco Systems Inc. Cisco IOS 15.2(4)E4 , Cisco Systems Inc. Cisco IOS 15.2(5)E2 , Cisco Systems Inc. Cisco IOS 15.2(4p)E1 , Cisco Systems Inc. Cisco IOS 15.2(6)E , Cisco Systems Inc. Cisco IOS 15.2(5)E2b , Cisco Systems Inc. Cisco IOS 15.2(4)E5 , Cisco Systems Inc. Cisco IOS 15.2(5)E2c , Cisco Systems Inc. Cisco IOS 15.2(4m)E2 , Cisco Systems Inc. Cisco IOS 15.2(4o)E3 , Cisco Systems Inc. Cisco IOS 15.2(4q)E1 , Cisco Systems Inc. Cisco IOS 15.2(6)E0a , Cisco Systems Inc. Cisco IOS 15.2(4)E5a , Cisco Systems Inc. Cisco IOS 15.2(6)E0c , Cisco Systems Inc. Cisco IOS 15.2(1)SY2 , Cisco Systems Inc. Cisco IOS 15.2(1)SY3 , Cisco Systems Inc. Cisco IOS 15.2(1)SY4 , Cisco Systems Inc. Cisco IOS 15.2(1)SY5 , Cisco Systems Inc. Cisco IOS 15.2(5)EX , Cisco Systems Inc. Cisco IOS 15.3(1)SY , Cisco Systems Inc. Cisco IOS 15.3(1)SY1 , Cisco Systems Inc. Cisco IOS 15.3(1)SY2 , Cisco Systems Inc. Cisco IOS 15.2(4)EC1 , Cisco Systems Inc. Cisco IOS 15.2(4)EC2 , Cisco Systems Inc. Cisco IOS 15.2(5a)E , Cisco Systems Inc. Cisco IOS 15.2(5b)E , Cisco Systems Inc. Cisco IOS 15.2(5c)E , Cisco Systems Inc. Cisco IOS 15.2(4s)E1 , Cisco Systems Inc. Cisco IOS 15.2(7)E , Cisco Systems Inc. Cisco IOS 12.2(6)I1 , Cisco Systems Inc. Cisco IOS 15.2(6)E1 , Cisco Systems Inc. Cisco IOS 15.2(4)E6 , Cisco Systems Inc. Cisco IOS 15.2(6)E1a , Cisco Systems Inc. Cisco IOS 15.2(4)E7 , Cisco Systems Inc. Cisco IOS 15.2(6)E1s , Cisco Systems Inc. Cisco IOS 15.2(4)EA , Cisco Systems Inc. Cisco IOS 15.2(4)EA1 , Cisco Systems Inc. Cisco IOS 15.2(4)EA3 , Cisco Systems Inc. Cisco IOS 15.2(5)EA , Cisco Systems Inc. Cisco IOS 15.2(4)EA4 , Cisco Systems Inc. Cisco IOS 15.2(4)EA2 , Cisco Systems Inc. Cisco IOS 15.2(4)EA5 , Cisco Systems Inc. Cisco IOS 15.2(4)EA6 , Cisco Systems Inc. Cisco IOS 15.2(4)EA7 , Cisco Systems Inc. Cisco IOS 15.2(4)EA8 , Cisco Systems Inc. Cisco IOS 15.2(4)EA9 , Cisco Systems Inc. Cisco IOS 15.2(1)SY6 , Cisco Systems Inc. Cisco IOS 15.2(1)SY7 , Cisco Systems Inc. Cisco IOS 15.3(0)SY , Cisco Systems Inc. Cisco IOS 15.3(3)JC6 , Cisco Systems Inc. Cisco IOS 15.3(3)JC8 , Cisco Systems Inc. Cisco IOS 15.2(4)E8 , Cisco Systems Inc. Cisco IOS \u0434\u043e 15.2(7)E4 , Cisco Systems Inc. Cisco IOS 15.1(3)SVR1 , Cisco Systems Inc. Cisco IOS 15.1(3)SVR2 , Cisco Systems Inc. Cisco IOS 15.1(3)SVR3 , Cisco Systems Inc. Cisco IOS 15.1(3)SVS , Cisco Systems Inc. Cisco IOS 15.1(3)SVS1 , Cisco Systems Inc. Cisco IOS 15.1(3)SVT1 , Cisco Systems Inc. Cisco IOS 15.1(3)SVT2 , Cisco Systems Inc. Cisco IOS 15.1(3)SVU1 , Cisco Systems Inc. Cisco IOS 15.2(1)SY8 , Cisco Systems Inc. Cisco IOS 15.2(4)E9 , Cisco Systems Inc. Cisco IOS 15.2(4)E10 , Cisco Systems Inc. Cisco IOS 15.2(4)E10A , Cisco Systems Inc. Cisco IOS 15.2(4)E10B , Cisco Systems Inc. Cisco IOS 15.2(4)EA9A , Cisco Systems Inc. Cisco IOS 15.2(6)E2 , Cisco Systems Inc. Cisco IOS 15.2(6)E2a , Cisco Systems Inc. Cisco IOS 15.2(6)E2b , Cisco Systems Inc. Cisco IOS 15.2(6)E3 , Cisco Systems Inc. Cisco IOS 15.2(6)Eb , Cisco Systems Inc. Cisco IOS 15.2(7)E0a , Cisco Systems Inc. Cisco IOS 15.2(7)E0b , Cisco Systems Inc. Cisco IOS 15.2(7)E0s , Cisco Systems Inc. Cisco IOS 15.2(7)E1 , Cisco Systems Inc. Cisco IOS 15.2(7)E1a , Cisco Systems Inc. Cisco IOS 15.2(7)E2 , Cisco Systems Inc. Cisco IOS 15.2(7)E2a , Cisco Systems Inc. Cisco IOS 15.2(7)E2b , Cisco Systems Inc. Cisco IOS 15.2(7)E3 , Cisco Systems Inc. Cisco IOS 15.2(7)E3a , Cisco Systems Inc. Cisco IOS 15.2(7)E3k , Cisco Systems Inc. Cisco IOS 15.2(7)E5 , Cisco Systems Inc. Cisco IOS 15.2(7)E99 , Cisco Systems Inc. Cisco IOS 15.2(7a)E0b , Cisco Systems Inc. Cisco IOS 15.2(7b)E0b , Cisco Systems Inc. Cisco IOS 15.2(8)E , Cisco Systems Inc. Cisco IOS 15.2(8)E1 , Cisco Systems Inc. Cisco IOS 15.2(234k)E ",
  "\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0444\u0443\u043d\u043a\u0446\u0438\u0438 AutoReconnect \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b Cisco IOS XE, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e \u0432\u044b\u0437\u0432\u0430\u0442\u044c \u043e\u0442\u043a\u0430\u0437 \u0432 \u043e\u0431\u0441\u043b\u0443\u0436\u0438\u0432\u0430\u043d\u0438\u0438",
  "\u041d\u0430\u043b\u0438\u0447\u0438\u0435 \u044d\u043a\u0441\u043f\u043b\u043e\u0439\u0442\u0430": "\u0414\u0430\u043d\u043d\u044b\u0435 \u0443\u0442\u043e\u0447\u043d\u044f\u044e\u0442\u0441\u044f",
  "\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "\u041d\u0435\u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u043c\u0430\u044f \u043f\u0435\u0440\u0435\u043c\u0435\u043d\u043d\u0430\u044f (CWE-563), \u041d\u0435\u043e\u0441\u0432\u043e\u0431\u043e\u0436\u0434\u0435\u043d\u0438\u0435 \u0440\u0435\u0441\u0443\u0440\u0441\u0430 \u043f\u043e\u0441\u043b\u0435 \u0438\u0441\u0442\u0435\u0447\u0435\u043d\u0438\u044f \u0434\u0435\u0439\u0441\u0442\u0432\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0433\u043e \u0441\u0440\u043e\u043a\u0430 \u0435\u0433\u043e \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f (CWE-772)",
  "\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0444\u0443\u043d\u043a\u0446\u0438\u0438 AutoReconnect \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c Cisco IOS XE \u0438 Cisco IOS \u0441\u0432\u044f\u0437\u0430\u043d\u0430 \u0441 \u0443\u0442\u0435\u0447\u043a\u043e\u0439 \u043f\u0430\u043c\u044f\u0442\u0438. \u042d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u043c\u043e\u0436\u0435\u0442 \u043f\u043e\u0437\u0432\u043e\u043b\u0438\u0442\u044c \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e, \u0434\u0435\u0439\u0441\u0442\u0432\u0443\u044e\u0449\u0435\u043c\u0443 \u0443\u0434\u0430\u043b\u0435\u043d\u043d\u043e, \u0432\u044b\u0437\u0432\u0430\u0442\u044c \u043e\u0442\u043a\u0430\u0437 \u0432 \u043e\u0431\u0441\u043b\u0443\u0436\u0438\u0432\u0430\u043d\u0438\u0438",
  "\u041f\u043e\u0441\u043b\u0435\u0434\u0441\u0442\u0432\u0438\u044f \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": null,
  "\u041f\u0440\u043e\u0447\u0430\u044f \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f": null,
  "\u0421\u0432\u044f\u0437\u044c \u0441 \u0438\u043d\u0446\u0438\u0434\u0435\u043d\u0442\u0430\u043c\u0438 \u0418\u0411": "\u0414\u0430\u043d\u043d\u044b\u0435 \u0443\u0442\u043e\u0447\u043d\u044f\u044e\u0442\u0441\u044f",
  "\u0421\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u0430",
  "\u0421\u043f\u043e\u0441\u043e\u0431 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044f": "\u041e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0435 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f",
  "\u0421\u043f\u043e\u0441\u043e\u0431 \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438": "\u0418\u0441\u0447\u0435\u0440\u043f\u0430\u043d\u0438\u0435 \u0440\u0435\u0441\u0443\u0440\u0441\u043e\u0432",
  "\u0421\u0441\u044b\u043b\u043a\u0438 \u043d\u0430 \u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a\u0438": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ikev2-ebFrwMPr\nvsfCisco20Security20AdvisoryvscatSecurity20IntelligencevstypeRSSvspCisco20IOS20and20IOS20XE20Software20IKEv220AutoReconnect20Feature20Denial20of20Service20Vulnerabilityvsk1#fs\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-1620",
  "\u0421\u0442\u0430\u0442\u0443\u0441 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u041f\u043e\u0434\u0442\u0432\u0435\u0440\u0436\u0434\u0435\u043d\u0430 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u0435\u043c",
  "\u0422\u0438\u043f \u041f\u041e": "\u041e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u0430\u044f \u0441\u0438\u0441\u0442\u0435\u043c\u0430, \u041f\u041e \u0441\u0435\u0442\u0435\u0432\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e-\u0430\u043f\u043f\u0430\u0440\u0430\u0442\u043d\u043e\u0433\u043e \u0441\u0440\u0435\u0434\u0441\u0442\u0432\u0430",
  "\u0422\u0438\u043f \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "CWE-563, CWE-772",
  "\u0423\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0421\u0440\u0435\u0434\u043d\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 (\u0431\u0430\u0437\u043e\u0432\u0430\u044f \u043e\u0446\u0435\u043d\u043a\u0430 CVSS 2.0 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 6,3)\n\u0412\u044b\u0441\u043e\u043a\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 (\u0431\u0430\u0437\u043e\u0432\u0430\u044f \u043e\u0446\u0435\u043d\u043a\u0430 CVSS 3.0 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 7,4)"
}

CVE-2021-1620 (GCVE-0-2021-1620)

Vulnerability from cvelistv5 – Published: 2021-09-23 02:31 – Updated: 2024-11-07 21:51

Title

Cisco IOS and IOS XE Software IKEv2 AutoReconnect Feature Denial of Service Vulnerability

Summary

A vulnerability in the Internet Key Exchange Version 2 (IKEv2) support for the AutoReconnect feature of Cisco IOS Software and Cisco IOS XE Software could allow an authenticated, remote attacker to exhaust the free IP addresses from the assigned local pool. This vulnerability occurs because the code does not release the allocated IP address under certain failure conditions. An attacker could exploit this vulnerability by trying to connect to the device with a non-AnyConnect client. A successful exploit could allow the attacker to exhaust the IP addresses from the assigned local pool, which prevents users from logging in and leads to a denial of service (DoS) condition.

Severity ?

7.7 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

CWE

CWE-563

Assigner

cisco

References

URL

Tags

https://tools.cisco.com/security/center/content/C…

vendor-advisoryx_refsource_CISCO

Impacted products

	Vendor	Product	Version
	Cisco	Cisco IOS	Affected: n/a

Date Public ?

2021-09-22 00:00

Show details on NVD website

JSON

To clipboard

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  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T16:18:10.394Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        "references": [
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            "tags": [
              "vendor-advisory",
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            ],
            "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ikev2-ebFrwMPr"
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        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2021-1620",
                "options": [
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                  },
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                  },
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                  }
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                "timestamp": "2024-11-07T21:40:25.956619Z",
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Cisco IOS",
          "vendor": "Cisco",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2021-09-22T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability in the Internet Key Exchange Version 2 (IKEv2) support for the AutoReconnect feature of Cisco IOS Software and Cisco IOS XE Software could allow an authenticated, remote attacker to exhaust the free IP addresses from the assigned local pool. This vulnerability occurs because the code does not release the allocated IP address under certain failure conditions. An attacker could exploit this vulnerability by trying to connect to the device with a non-AnyConnect client. A successful exploit could allow the attacker to exhaust the IP addresses from the assigned local pool, which prevents users from logging in and leads to a denial of service (DoS) condition."
        }
      ],
      "exploits": [
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          "value": "The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."
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      "metrics": [
        {
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            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.7,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
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      "providerMetadata": {
        "dateUpdated": "2021-09-23T02:31:01.000Z",
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        "shortName": "cisco"
      },
      "references": [
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          "name": "20210922 Cisco IOS and IOS XE Software IKEv2 AutoReconnect Feature Denial of Service Vulnerability",
          "tags": [
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          ],
          "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ikev2-ebFrwMPr"
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      "source": {
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        "discovery": "INTERNAL"
      },
      "title": "Cisco IOS and IOS XE Software IKEv2 AutoReconnect Feature Denial of Service Vulnerability",
      "x_legacyV4Record": {
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          "STATE": "PUBLIC",
          "TITLE": "Cisco IOS and IOS XE Software IKEv2 AutoReconnect Feature Denial of Service Vulnerability"
        },
        "affects": {
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              "value": "A vulnerability in the Internet Key Exchange Version 2 (IKEv2) support for the AutoReconnect feature of Cisco IOS Software and Cisco IOS XE Software could allow an authenticated, remote attacker to exhaust the free IP addresses from the assigned local pool. This vulnerability occurs because the code does not release the allocated IP address under certain failure conditions. An attacker could exploit this vulnerability by trying to connect to the device with a non-AnyConnect client. A successful exploit could allow the attacker to exhaust the IP addresses from the assigned local pool, which prevents users from logging in and leads to a denial of service (DoS) condition."
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        },
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            "value": "The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."
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        "impact": {
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            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H",
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                  "lang": "eng",
                  "value": "CWE-563"
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}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

BDU:2022-00042

CVE-2021-1620 (GCVE-0-2021-1620)

Tags

Sightings

Nomenclature