Juniper: >> Junos Os Evolved >> 22.2 Security Vulnerabilities
An Improper Neutralization of Special Elements vulnerability in Juniper Networks Junos OS Evolved commands allows a local, authenticated attacker with low privileges to escalate their privileges to 'root' leading to a full compromise of the system.
The Junos OS Evolved CLI doesn't properly handle command options in some cases, allowing users which execute specific CLI commands with a crafted set of parameters to escalate their privileges to root on shell level.
This issue affects Junos OS Evolved:
* 21.1-EVO versions 21.1R1-EVO and later before 21.2R3-S8-EVO,
* 21.4-EVO versions before 21.4R3-S7-EVO,
* 22.1-EVO versions before 22.1R3-S6-EVO,
* 22.2-EVO versions before 22.2R3-EVO,
* 22.3-EVO versions before 22.3R2-EVO.
CVSS Score
7.8
EPSS Score
0.002
Published
2024-07-11
An Improper Neutralization of Special Elements vulnerability in Juniper Networks Junos OS Evolved commands allows a local, authenticated attacker with low privileges to escalate their privileges to 'root' leading to a full compromise of the system.
The Junos OS Evolved CLI doesn't properly handle command options in some cases, allowing users which execute specific CLI commands with a crafted set of parameters to escalate their privileges to root on shell level.
This issue affects Junos OS Evolved:
* All versions before 20.4R3-S7-EVO,
* 21.2-EVO versions before 21.2R3-S8-EVO,
* 21.4-EVO versions before 21.4R3-S7-EVO,
* 22.1-EVO versions before 22.1R3-S6-EVO,
* 22.2-EVO versions before 22.2R3-EVO,
* 22.3-EVO versions before 22.3R2-EVO,
* 22.4-EVO versions before 22.4R2-EVO.
CVSS Score
7.8
EPSS Score
0.002
Published
2024-07-11
An Improper Neutralization of Special Elements vulnerability in Juniper Networks Junos OS Evolved commands allows a local, authenticated attacker with low privileges to escalate their privileges to 'root' leading to a full compromise of the system.
The Junos OS Evolved CLI doesn't properly handle command options in some cases, allowing users which execute specific CLI commands with a crafted set of parameters to escalate their privileges to root on shell level.
This issue affects Junos OS Evolved:
All versions before 20.4R3-S7-EVO,
21.2-EVO versions before 21.2R3-S8-EVO,
21.4-EVO versions before 21.4R3-S7-EVO,
22.2-EVO versions before 22.2R3-EVO,
22.3-EVO versions before 22.3R2-EVO,
22.4-EVO versions before 22.4R2-EVO.
CVSS Score
7.8
EPSS Score
0.002
Published
2024-07-11
An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS Evolved on ACX7000 Series allows an unauthenticated, adjacent attacker to cause a
Denial-of-Service (DoS).
On all ACX 7000 Series platforms running
Junos OS Evolved, and configured with IRBs, if a Customer Edge device (CE) device is dual homed to two Provider Edge devices (PE) a traffic loop will occur when the CE sends multicast packets. This issue can be triggered by IPv4 and IPv6 traffic.
This issue affects Junos OS Evolved:
All versions from 22.2R1-EVO and later versions before 22.4R2-EVO,
This issue does not affect Junos OS Evolved versions before 22.1R1-EVO.
CVSS Score
6.5
EPSS Score
0.002
Published
2024-07-11
An Improper Neutralization of Special Elements vulnerability in Juniper Networks Junos OS Evolved commands allows a local, authenticated attacker with low privileges to escalate their privileges to 'root' leading to a full compromise of the system.
The Junos OS Evolved CLI doesn't properly handle command options in some cases, allowing users which execute specific CLI commands with a crafted set of parameters to escalate their privileges to root on shell level.
This issue affects Junos OS Evolved:
* All version before 20.4R3-S6-EVO,
* 21.2-EVO versions before 21.2R3-S4-EVO,
* 21.4-EVO versions before 21.4R3-S6-EVO,
* 22.2-EVO versions before 22.2R2-S1-EVO, 22.2R3-EVO,
* 22.3-EVO versions before 22.3R2-EVO.
CVSS Score
7.8
EPSS Score
0.002
Published
2024-07-11
An Improper Handling of Exceptional Conditions vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a logically adjacent downstream RSVP neighbor to cause kernel memory exhaustion, leading to a kernel crash, resulting in a Denial of Service (DoS).
The kernel memory leak and eventual crash will be seen when the downstream RSVP neighbor has a persistent error which will not be corrected.
System kernel memory can be monitored through the use of the 'show system kernel memory' command as shown below:
user@router> show system kernel memory
Real memory total/reserved: 4130268/ 133344 Kbytes
kmem map free: 18014398509110220 Kbytes
This issue affects:
Junos OS:
* All versions before 20.4R3-S9,
* All versions of 21.2,
* from 21.4 before 21.4R3-S5,
* from 22.1 before 22.1R3-S5,
* from 22.2 before 22.2R3-S3,
* from 22.3 before 22.3R3-S2,
* from 22.4 before 22.4R3,
* from 23.2 before 23.2R2;
Junos OS Evolved:
* All versions before 21.4R3-S5-EVO,
* from 22.1-EVO before 22.1R3-S5-EVO,
* from 22.2-EVO before 22.2R3-S3-EVO,
* from 22.3-EVO before 22.3R3-S2-EVO,
* from 22.4-EVO before 22.4R3-EVO,
* from 23.2-EVO before 23.2R2-EVO.
CVSS Score
6.5
EPSS Score
0.001
Published
2024-07-10
A Stack-Based Buffer Overflow vulnerability in Juniper Networks Junos OS and Juniper Networks Junos OS Evolved may allow a local, low-privileged attacker with access to the CLI the ability to load a malicious certificate file, leading to a limited Denial of Service (DoS) or privileged code execution.
By exploiting the 'set security certificates' command with a crafted certificate file, a malicious attacker with access to the CLI could cause a crash of the command management daemon (mgd), limited to the local user's command interpreter, or potentially trigger a stack-based buffer overflow.
This issue affects:
Junos OS:
* All versions before 21.4R3-S7,
* from 22.1 before 22.1R3-S6,
* from 22.2 before 22.2R3-S4,
* from 22.3 before 22.3R3-S3,
* from 22.4 before 22.4R3-S2,
* from 23.2 before 23.2R2,
* from 23.4 before 23.4R1-S1, 23.4R2;
Junos OS Evolved:
* All versions before 21.4R3-S7-EVO,
* from 22.1-EVO before 22.1R3-S6-EVO,
* from 22.2-EVO before 22.2R3-S4-EVO,
* from 22.3-EVO before 22.3R3-S3-EVO,
* from 22.4-EVO before 22.4R3-S2-EVO,
* from 23.2-EVO before 23.2R2-EVO,
* from 23.4-EVO before 23.4R1-S1-EVO, 23.4R2-EVO.
CVSS Score
6.4
EPSS Score
0.001
Published
2024-07-10
An Uncontrolled Resource Consumption vulnerability in the
Layer 2 Address Learning Daemon (l2ald)
of Juniper Networks Junos OS Evolved allows an unauthenticated, adjacent attacker to cause a memory leak, eventually exhausting all system memory, leading to a system crash and Denial of Service (DoS).
Certain MAC table updates cause a small amount of memory to leak. Once memory utilization reaches its limit, the issue will result in a system crash and restart.
To identify the issue, execute the CLI command:
user@device> show platform application-info allocations app l2ald-agent
EVL Object Allocation Statistics:
Node Application Context Name Live Allocs Fails Guids
re0 l2ald-agent net::juniper::rtnh::L2Rtinfo 1069096 1069302 0 1069302
re0 l2ald-agent net::juniper::rtnh::NHOpaqueTlv 114 195 0 195
This issue affects Junos OS Evolved:
* All versions before 21.4R3-S8-EVO,
* from 22.2-EVO before 22.2R3-S4-EVO,
* from 22.3-EVO before 22.3R3-S3-EVO,
* from 22.4-EVO before 22.4R3-EVO,
* from 23.2-EVO before 23.2R2-EVO.
CVSS Score
6.5
EPSS Score
0.002
Published
2024-07-10
An Unchecked Return Value vulnerability in the Routing Protocol Daemon (rpd) on Juniper Networks Junos OS and Juniper Networks Junos OS Evolved allows a logically adjacent, unauthenticated attacker sending a specific PIM packet to cause rpd to crash and restart, resulting in a Denial of Service (DoS), when PIM is configured with Multicast-only Fast Reroute (MoFRR). Continued receipt and processing of this packet may create a sustained Denial of Service (DoS) condition.
This issue is observed on Junos and Junos Evolved platforms where PIM is configured along with MoFRR. MoFRR tries to select the active path, but due to an internal timing issue, rpd is unable to select the forwarding next-hop towards the source, resulting in an rpd crash.
This issue affects:
Junos OS:
* All versions before 20.4R3-S10,
* from 21.2 before 21.2R3-S7,
* from 21.4 before 21.4R3-S6,
* from 22.1 before 22.1R3-S5,
* from 22.2 before 22.2R3-S3,
* from 22.3 before 22.3R3,
* from 22.4 before 22.4R2;
Junos OS Evolved:
* All versions before 20.4R3-S10 -EVO,
* All versions of 21.2-EVO,
* from 21.4-EVO before 21.4R3-S9-EVO,
* from 22.1-EVO before 22.1R3-S5-EVO,
* from 22.2-EVO before 22.2R3-S3-EVO,
* from 22.3-EVO before 22.3R3-EVO,
* from 22.4-EVO before 22.4R2-EVO.
CVSS Score
6.5
EPSS Score
0.002
Published
2024-07-10
An Improper Check for Unusual or Exceptional Conditions vulnerability in packet processing of Juniper Networks Junos OS Evolved may allow a network-based unauthenticated attacker to crash the device (vmcore) by sending a specific TCP packet over an established TCP session with MD5 authentication enabled, destined to an accessible port on the device, resulting in a Denial of Service (DoS). The receipt of this packet must occur within a specific timing window outside the attacker's control (i.e., race condition).
Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition.
This issue only affects dual RE systems with Nonstop Active Routing (NSR) enabled.
Exploitation can only occur over TCP sessions with MD5 authentication enabled (e.g., BGP with MD5 authentication).
This issue affects Junos OS Evolved:
* All versions before 21.2R3-S8-EVO,
* from 21.4-EVO before 21.4R3-S6-EVO,
* from 22.1-EVO before 22.1R3-S4-EVO,
* from 22.2-EVO before 22.2R3-S4-EVO,
* from 22.3-EVO before 22.3R3-S3-EVO,
* from 22.4-EVO before 22.4R2-S2-EVO, 22.4R3-EVO.
CVSS Score
5.9
EPSS Score
0.004
Published
2024-07-10