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CVE-2020-1662

Опубликовано: 16 окт. 2020
Источник: nvd
CVSS3: 7.5
CVSS2: 4.3
EPSS Низкий

Описание

On Juniper Networks Junos OS and Junos OS Evolved devices, BGP session flapping can lead to a routing process daemon (RPD) crash and restart, limiting the attack surface to configured BGP peers. This issue only affects devices with BGP damping in combination with accepted-prefix-limit configuration. When the issue occurs the following messages will appear in the /var/log/messages: rpd[6046]: %DAEMON-4-BGP_PREFIX_THRESH_EXCEEDED: XXXX (External AS x): Configured maximum accepted prefix-limit threshold(1800) exceeded for inet6-unicast nlri: 1984 (instance master) rpd[6046]: %DAEMON-3-BGP_CEASE_PREFIX_LIMIT_EXCEEDED: 2001:x:x:x::2 (External AS x): Shutting down peer due to exceeding configured maximum accepted prefix-limit(2000) for inet6-unicast nlri: 2001 (instance master) rpd[6046]: %DAEMON-4: bgp_rt_maxprefixes_check_common:9284: NOTIFICATION sent to 2001:x:x:x::2 (External AS x): code 6 (Cease) subcode 1 (Maximum Number of Prefixes Reached) AFI: 2 SAFI: 1 prefix limit 2000 kernel: %K

Ссылки

Уязвимые конфигурации

Конфигурация 1

Одно из

cpe:2.3:o:juniper:junos:17.2:r3-s3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.3:r3-s3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.3:r3-s4:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.3:r3-s7:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.4:r2-s4:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.4:r2-s5:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.4:r2-s6:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.4:r2-s7:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.4:r2-s8:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.4:r2-s9:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.4:r3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.4:r3-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.1:r3-s6:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.1:r3-s7:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.1:r3-s8:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.1:r3-s9:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.2:r3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.2:r3-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.2:r3-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.2:r3-s3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.2x75:d50:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.2x75:d51:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.2x75:d60:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.3:r2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.3:r2-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.3:r2-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.3:r2-s3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.3:r3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.3:r3-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.4:r2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.4:r2-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.4:r2-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.4:r2-s3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.4:r2-s4:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.4:r3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.4:r3-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:19.1:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:19.1:r1-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:19.1:r1-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:19.1:r1-s3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:19.1:r1-s4:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:19.1:r2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:19.1:r2-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:19.1:r3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:19.2:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:19.2:r1-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:19.2:r1-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:19.2:r1-s3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:19.3:-:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:19.3:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:19.3:r1-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:19.3:r2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:19.3:r2-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:19.3:r2-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:19.4:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:19.4:r1-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:19.4:r1-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:20.1:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:20.1:r1-s1:*:*:*:*:*:*

EPSS

Процентиль: 59%
0.00389
Низкий

7.5 High

CVSS3

4.3 Medium

CVSS2

Дефекты

CWE-20
NVD-CWE-noinfo

Связанные уязвимости

github
больше 3 лет назад

On Juniper Networks Junos OS and Junos OS Evolved devices, BGP session flapping can lead to a routing process daemon (RPD) crash and restart, limiting the attack surface to configured BGP peers. This issue only affects devices with BGP damping in combination with accepted-prefix-limit configuration. When the issue occurs the following messages will appear in the /var/log/messages: rpd[6046]: %DAEMON-4-BGP_PREFIX_THRESH_EXCEEDED: XXXX (External AS x): Configured maximum accepted prefix-limit threshold(1800) exceeded for inet6-unicast nlri: 1984 (instance master) rpd[6046]: %DAEMON-3-BGP_CEASE_PREFIX_LIMIT_EXCEEDED: 2001:x:x:x::2 (External AS x): Shutting down peer due to exceeding configured maximum accepted prefix-limit(2000) for inet6-unicast nlri: 2001 (instance master) rpd[6046]: %DAEMON-4: bgp_rt_maxprefixes_check_common:9284: NOTIFICATION sent to 2001:x:x:x::2 (External AS x): code 6 (Cease) subcode 1 (Maximum Number of Prefixes Reached) AFI: 2 SAFI: 1 prefix limit 2000 kernel:...

CVSS3: 7.5
fstec
больше 5 лет назад

Уязвимость реализации протокола BGP операционной системы Junos, позволяющая нарушителю вызвать аварийный сбой и перезапуск устройства

EPSS

Процентиль: 59%
0.00389
Низкий

7.5 High

CVSS3

4.3 Medium

CVSS2

Дефекты

CWE-20
NVD-CWE-noinfo