Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2021-31386

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
19/10/2021
Last modified:
25/10/2021

Description

A Protection Mechanism Failure vulnerability in the J-Web HTTP service of Juniper Networks Junos OS allows a remote unauthenticated attacker to perform Person-in-the-Middle (PitM) attacks against the device. This issue affects: Juniper Networks Junos OS 12.3 versions prior to 12.3R12-S20; 15.1 versions prior to 15.1R7-S11; 18.3 versions prior to 18.3R3-S6; 18.4 versions prior to 18.4R3-S10; 19.1 versions prior to 19.1R3-S7; 19.2 versions prior to 19.2R3-S4; 19.3 versions prior to 19.3R3-S4; 19.4 versions prior to 19.4R3-S6; 20.1 versions prior to 20.1R3-S2; 20.2 versions prior to 20.2R3-S3; 20.3 versions prior to 20.3R3-S1; 20.4 versions prior to 20.4R3; 21.1 versions prior to 21.1R3; 21.2 versions prior to 21.2R2.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS v3.1 Severity and Metrics:

Base Score: 5.90 MEDIUM
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): None
Availability (A): None

Base Score 3.x
5.90
Severity 3.x
MEDIUM
Vector 2.0
AV:N/AC:H/Au:N/C:P/I:N/A:N CVSS v2.0 Severity and Metrics:

Base Score: 2.60 LOW
Vector: AV:N/AC:H/Au:N/C:P/I:N/A:N

Attack Vector (AV): Network
Attack Complexity (AC): High
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): None
Availability (A): None

Base Score 2.0
2.60
Severity 2.0
LOW

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:juniper:junos:12.3:-:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.3:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.3:r10:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.3:r10-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.3:r10-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.3:r11:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.3:r12:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.3:r12-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.3:r12-s10:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.3:r12-s11:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.3:r12-s12:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.3:r12-s13:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.3:r12-s14:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.3:r12-s15:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.3:r12-s16:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools