Denial of Service Vulnerability in Routing Protocol daemon (rpd)
CVE-2024-39515

7.5HIGH

Key Information:

Vendor

Juniper Networks
Status
Junos Os
Junos Os Evolved
Vendor
CVE Published:
9 October 2024

Badges

👾 Exploit Exists

What is CVE-2024-39515?

A vulnerability exists within the routing protocol daemon (rpd) of Juniper Networks' Junos OS and Junos OS Evolved, stemming from improper validation of consistency within input data. This allows unauthenticated network-based attackers to exploit a specially crafted BGP packet, potentially leading to a crash and restart of the rpd service. A sustained bombardment of this malformed packet can induce a prolonged Denial of Service (DoS) condition, where the rpd may occasionally fail to restart automatically, necessitating a manual intervention via the CLI command 'restart routing'. The vulnerability affects both iBGP and eBGP sessions over IPv4 and IPv6, specifically targeting systems with BGP traceoptions enabled.

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Affected Version(s)

Junos OS 0 < 21.4R3-S8

Junos OS 22.2 < 22.2R3-S5

Junos OS 22.3 < 22.3R3-S4

References

https://supportportal.juniper.net/JSA88099
vendor-advisory
https://www.juniper.net/documentation/us/en/software/juno...
related

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 👾

    Exploit known to exist

  • Vulnerability published

Credit

Juniper SIRT would like to acknowledge and thank Craig Dods from Meta’s Infrastructure Security Engineering team for responsibly reporting this vulnerability.
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