Denial of service in Junos OS and Junos OS Evolved rpd



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2024-47507
CWE-ID CWE-754
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Juniper Junos OS
Operating systems & Components / Operating system

Junos OS Evolved
Operating systems & Components / Operating system

Vendor Juniper Networks, Inc.

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Improper Check for Unusual or Exceptional Conditions

EUVDB-ID: #VU98406

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2024-47507

CWE-ID: CWE-754 - Improper Check for Unusual or Exceptional Conditions

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper error handling in the routing protocol daemon (rpd) when handling BGP update messages. A remote attacker can send specially crafted BGP update message, which contains the aggregator attribute with an ASN value of zero (0), and cause issues for the downstream BGP peers receiving this.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Juniper Junos OS: 21.4R1-S1 - 23.2R1-S2

Junos OS Evolved: 21.4R1-EVO - 22.4R2-S2-EVO

CPE2.3 External links

https://supportportal.juniper.net/s/article/2024-10-Security-Bulletin-Junos-OS-and-Junos-OS-Evolved-BGP-update-message-containing-aggregator-attribute-with-an-ASN-value-of-zero-0-is-accepted-CVE-2024-47507


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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