// For flags

CVE-2024-39515

Junos OS and Junos OS Evolved: With BGP traceoptions enabled, receipt of specifically malformed BGP update causes RPD crash

Severity Score

8.7
*CVSS v4

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Attend
*SSVC
Descriptions

An Improper Validation of Consistency within Input vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated network-based attacker sending a specifically malformed BGP packet to cause rpd to crash and restart, resulting in a Denial of Service (DoS). Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition.

In some cases, rpd fails to restart requiring a manual restart via the 'restart routing' CLI command.

This issue only affects systems with BGP traceoptions enabled and

requires a BGP session to be already established. Systems without BGP traceoptions enabled are not affected by this issue.

This issue affects iBGP and eBGP, and both IPv4 and IPv6 are affected by this vulnerability.

This issue affects:

Junos OS: 

* All versions before 21.4R3-S8, 
* 22.2 before 22.2R3-S5, 
* 22.3 before 22.3R3-S4, 
* 22.4 before 22.4R3-S3, 
* 23.2 before 23.2R2-S2, 
* 23.4 before 23.4R2; 


Junos OS Evolved: 

* All versions before 21.4R3-S8-EVO, 
* 22.2-EVO before 22.2R3-S5-EVO, 
* 22.3-EVO before 22.3R3-S4-EVO, 
* 22.4-EVO before 22.4R3-S3-EVO, 
* 23.2-EVO before 23.2R2-S2-EVO, 
* 23.4-EVO before 23.4R2-EVO.

*Credits: Juniper SIRT would like to acknowledge and thank Craig Dods from Meta’s Infrastructure Security Engineering team for responsibly reporting this vulnerability.
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
System
Vulnerable | Subsequent
Confidentiality
None
None
Integrity
None
None
Availability
High
Low
Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
System
Vulnerable | Subsequent
Confidentiality
None
None
Integrity
None
None
Availability
High
Low
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
* Common Vulnerability Scoring System
SSVC
  • Decision:Attend
Exploitation
None
Automatable
Yes
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2024-06-25 CVE Reserved
  • 2024-10-09 CVE Published
  • 2024-10-10 EPSS Updated
  • 2024-10-11 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-1288: Improper Validation of Consistency within Input
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Juniper Networks
Search vendor "Juniper Networks"
 Junos OS
Search vendor "Juniper Networks" for product "Junos OS"
 < 21.4R3-S8
Search vendor "Juniper Networks" for product "Junos OS" and version " < 21.4R3-S8"
en
Affected
Juniper Networks
Search vendor "Juniper Networks"
 Junos OS
Search vendor "Juniper Networks" for product "Junos OS"
 >= 22.2 < 22.2R3-S5
Search vendor "Juniper Networks" for product "Junos OS" and version " >= 22.2 < 22.2R3-S5"
en
Affected
Juniper Networks
Search vendor "Juniper Networks"
 Junos OS
Search vendor "Juniper Networks" for product "Junos OS"
 >= 22.3 < 22.3R3-S4
Search vendor "Juniper Networks" for product "Junos OS" and version " >= 22.3 < 22.3R3-S4"
en
Affected
Juniper Networks
Search vendor "Juniper Networks"
 Junos OS
Search vendor "Juniper Networks" for product "Junos OS"
 >= 22.4 < 22.4R3-S3
Search vendor "Juniper Networks" for product "Junos OS" and version " >= 22.4 < 22.4R3-S3"
en
Affected
Juniper Networks
Search vendor "Juniper Networks"
 Junos OS
Search vendor "Juniper Networks" for product "Junos OS"
 >= 23.2 < 23.2R2-S2
Search vendor "Juniper Networks" for product "Junos OS" and version " >= 23.2 < 23.2R2-S2"
en
Affected
Juniper Networks
Search vendor "Juniper Networks"
 Junos OS
Search vendor "Juniper Networks" for product "Junos OS"
 >= 23.4 < 23.4R2
Search vendor "Juniper Networks" for product "Junos OS" and version " >= 23.4 < 23.4R2"
en
Affected
Juniper Networks
Search vendor "Juniper Networks"
 Junos OS Evolved
Search vendor "Juniper Networks" for product "Junos OS Evolved"
 < 21.4R3-S8-EVO
Search vendor "Juniper Networks" for product "Junos OS Evolved" and version " < 21.4R3-S8-EVO"
en
Affected
Juniper Networks
Search vendor "Juniper Networks"
 Junos OS Evolved
Search vendor "Juniper Networks" for product "Junos OS Evolved"
 >= 22.2-EVO < 22.2R3-S5-EVO
Search vendor "Juniper Networks" for product "Junos OS Evolved" and version " >= 22.2-EVO < 22.2R3-S5-EVO"
en
Affected
Juniper Networks
Search vendor "Juniper Networks"
 Junos OS Evolved
Search vendor "Juniper Networks" for product "Junos OS Evolved"
 >= 22.3-EVO < 22.3R3-S4-EVO
Search vendor "Juniper Networks" for product "Junos OS Evolved" and version " >= 22.3-EVO < 22.3R3-S4-EVO"
en
Affected
Juniper Networks
Search vendor "Juniper Networks"
 Junos OS Evolved
Search vendor "Juniper Networks" for product "Junos OS Evolved"
 >= 22.4-EVO < 22.4R3-S3-EVO
Search vendor "Juniper Networks" for product "Junos OS Evolved" and version " >= 22.4-EVO < 22.4R3-S3-EVO"
en
Affected
Juniper Networks
Search vendor "Juniper Networks"
 Junos OS Evolved
Search vendor "Juniper Networks" for product "Junos OS Evolved"
 >= 23.2-EVO < 23.2R2-S2-EVO
Search vendor "Juniper Networks" for product "Junos OS Evolved" and version " >= 23.2-EVO < 23.2R2-S2-EVO"
en
Affected
Juniper Networks
Search vendor "Juniper Networks"
 Junos OS Evolved
Search vendor "Juniper Networks" for product "Junos OS Evolved"
 >= 23.4-EVO < 23.4R2-EVO
Search vendor "Juniper Networks" for product "Junos OS Evolved" and version " >= 23.4-EVO < 23.4R2-EVO"
en
Affected