certfr_avis - certfr-2021-avi-411

CERTFR-2021-AVI-411

Vulnerability from certfr_avis - Published: - Updated:

Une vulnérabilité a été découverte dans Juniper Junos OS. Elle permet à un attaquant de provoquer une exécution de code arbitraire à distance, un déni de service à distance et une élévation de privilèges.

Solution

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

None

Impacted products

Vendor	Product	Description
Juniper Networks	Junos OS	Junos OS versions 19.3 antérieures à 19.3R3
Juniper Networks	Junos OS	Junos OS versions 18.3 antérieures à 18.3R2-S4, 18.3R3-S3
Juniper Networks	Junos OS	Junos OS versions 19.2 antérieures à 19.2R1-S5, 19.2R2
Juniper Networks	Junos OS	Junos OS versions 18.2 antérieures à 18.2R3-S5
Juniper Networks	Junos OS	Junos OS versions 19.4 antérieures à 19.4R1-S3, 19.4R2, 19.4R3
Juniper Networks	Junos OS	Junos OS versions 18.1 antérieures à 18.1R3-S11
Juniper Networks	Junos OS	Junos OS versions 19.1 antérieures à 19.1R2-S2, 19.1R3-S2
Juniper Networks	Junos OS	Junos OS versions 20.1 antérieures à 20.1R1-S2, 20.1R2
Juniper Networks	Junos OS	Junos OS versions 18.4 antérieures à 18.4R2-S5, 18.4R3-S3

References

Title

Publication Time

CVE-2021-0268 (GCVE-0-2021-0268)

Vulnerability from cvelistv5 – Published: 2021-04-22 19:37 – Updated: 2024-09-17 01:36

Summary

An Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Response Splitting') weakness in J-web of Juniper Networks Junos OS leads to buffer overflows, segment faults, or other impacts, which allows an attacker to modify the integrity of the device and exfiltration information from the device without authentication. The weakness can be exploited to facilitate cross-site scripting (XSS), cookie manipulation (modifying session cookies, stealing cookies) and more. This weakness can also be exploited by directing a user to a seemingly legitimate link from the affected site. The attacker requires no special access or permissions to the device to carry out such attacks. This issue affects: Juniper Networks Junos OS: 18.1 versions prior to 18.1R3-S11; 18.2 versions prior to 18.2R3-S5; 18.3 versions prior to 18.3R2-S4, 18.3R3-S3; 18.4 versions prior to 18.4R2-S5, 18.4R3-S3; 19.1 versions prior to 19.1R2-S2, 19.1R3-S2; 19.2 versions prior to 19.2R1-S5, 19.2R2; 19.3 versions prior to 19.3R3; 19.4 versions prior to 19.4R1-S3, 19.4R2, 19.4R3; 20.1 versions prior to 20.1R1-S2, 20.1R2. This issue does not affect Juniper Networks Junos OS versions prior to 18.1R1.

Severity ?

8.8 (High)


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

CWE

CWE-113 - Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Response Splitting')
CWE-120 - Buffer Overflow
Denial of Service (DoS)
CWE-79 - Cross-site Scripting (XSS)

Assigner

juniper

References

URL

Tags

https://kb.juniper.net/JSA11159

x_refsource_MISC

Impacted products

	Vendor	Product	Version
	Juniper Networks	Junos OS	Unaffected: unspecified , < 18.1R1 (custom) Affected: 18.1 , < 18.1R3-S11 (custom) Affected: 18.2 , < 18.2R3-S5 (custom) Affected: 18.3 , < 18.3R2-S4, 18.3R3-S3 (custom) Affected: 18.4 , < 18.4R2-S5, 18.4R3-S3 (custom) Affected: 19.1 , < 19.1R2-S2, 19.1R3-S2 (custom) Affected: 19.2 , < 19.2R1-S5, 19.2R2 (custom) Affected: 19.3 , < 19.3R3 (custom) Affected: 19.4 , < 19.4R1-S3, 19.4R2, 19.4R3 (custom) Affected: 20.1 , < 20.1R1-S2, 20.1R2 (custom)

Credits

The Juniper SIRT wishes to thank Luca Ercoli for responsibly reporting one of the issues resolved in this update.

Show details on NVD website

JSON

To clipboard

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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.

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