CVE-2020-1657 Vulnerability Analysis & Exploit Details

CVE-2020-1657
Vulnerability Scoring

7.5
/10
Very High Risk

Highly exploitable, CVE-2020-1657 poses a critical security risk that could lead to severe breaches.

Attack Complexity Details

  • Attack Complexity: Low
    Exploits can be performed without significant complexity or special conditions.
  • Attack Vector: Network
    Vulnerability is exploitable over a network without physical access.
  • Privileges Required: None
    No privileges are required for exploitation.
  • Scope: Unchanged
    Exploit remains within the originally vulnerable component.
  • User Interaction: None
    No user interaction is necessary for exploitation.

CVE-2020-1657 Details

Status: Analyzed

Last updated: 🕖 27 Oct 2020, 19:08 UTC
Originally published on: 🕘 16 Oct 2020, 21:15 UTC

Time between publication and last update: 10 days

CVSS Release: version 3

CVSS3 Source

sirt@juniper.net

CVSS3 Type

Primary

CVSS3 Vector

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

CVE-2020-1657 Vulnerability Summary

CVE-2020-1657: On SRX Series devices, a vulnerability in the key-management-daemon (kmd) daemon of Juniper Networks Junos OS allows an attacker to spoof packets targeted to IPSec peers before a security association (SA) is established thereby causing a failure to set up the IPSec channel. Sustained receipt of these spoofed packets can cause a sustained Denial of Service (DoS) condition. This issue affects IPv4 and IPv6 implementations. This issue affects Juniper Networks Junos OS on SRX Series: 12.3X48 versions prior to 12.3X48-D90; 15.1X49 versions prior to 15.1X49-D190; 17.4 versions prior to 17.4R2-S9, 17.4R3; 18.1 versions prior to 18.1R3-S9; 18.2 versions prior to 18.2R3; 18.3 versions prior to 18.3R1-S7, 18.3R2-S3, 18.3R3; 18.4 versions prior to 18.4R1-S6, 18.4R2-S3, 18.4R3; 19.1 versions prior to 19.1R1-S4, 19.1R2. This issue does not affect 12.3 or 15.1 releases which are non-SRX Series releases.

Assessing the Risk of CVE-2020-1657

Access Complexity Graph

The exploitability of CVE-2020-1657 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).

Exploitability Analysis for CVE-2020-1657

With low attack complexity and no required privileges, CVE-2020-1657 is an easy target for cybercriminals. Organizations should prioritize immediate mitigation measures to prevent unauthorized access and data breaches.

Understanding AC and PR

A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.

Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.

Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.

CVSS Score Breakdown Chart

Above is the CVSS Sub-score Breakdown for CVE-2020-1657, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.

CIA Impact Analysis

Below is the Impact Analysis for CVE-2020-1657, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: None
    CVE-2020-1657 has no significant impact on data confidentiality.
  • Integrity: None
    CVE-2020-1657 poses no threat to data integrity.
  • Availability: High
    CVE-2020-1657 can disrupt system operations, potentially causing complete denial of service (DoS).

Exploit Prediction Scoring System (EPSS)

The EPSS score estimates the probability that this vulnerability will be exploited in the near future.

EPSS Score: 0.106% (probability of exploit)

EPSS Percentile: 45.18% (lower percentile = lower relative risk)
This vulnerability is less risky than approximately 54.82% of others.

CVE-2020-1657 References

External References

CWE Common Weakness Enumeration

CWE-408

Vulnerable Configurations

  • cpe:2.3:o:juniper:junos:12.3x48:-:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:12.3x48:-:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:12.3x48:d10:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:12.3x48:d10:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:12.3x48:d15:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:12.3x48:d15:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:12.3x48:d20:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:12.3x48:d20:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:12.3x48:d25:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:12.3x48:d25:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:12.3x48:d30:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:12.3x48:d30:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:12.3x48:d35:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:12.3x48:d35:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:12.3x48:d40:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:12.3x48:d40:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:12.3x48:d45:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:12.3x48:d45:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:12.3x48:d50:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:12.3x48:d50:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:12.3x48:d51:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:12.3x48:d51:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:12.3x48:d55:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:12.3x48:d55:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:12.3x48:d60:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:12.3x48:d60:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:12.3x48:d65:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:12.3x48:d65:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:12.3x48:d70:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:12.3x48:d70:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:12.3x48:d75:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:12.3x48:d75:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:12.3x48:d80:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:12.3x48:d80:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:15.1x49:-:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:15.1x49:-:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:15.1x49:d10:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:15.1x49:d10:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:15.1x49:d100:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:15.1x49:d100:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:15.1x49:d110:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:15.1x49:d110:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:15.1x49:d120:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:15.1x49:d120:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:15.1x49:d130:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:15.1x49:d130:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:15.1x49:d140:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:15.1x49:d140:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:15.1x49:d15:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:15.1x49:d15:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:15.1x49:d150:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:15.1x49:d150:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:15.1x49:d160:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:15.1x49:d160:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:15.1x49:d170:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:15.1x49:d170:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:15.1x49:d180:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:15.1x49:d180:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:17.4:-:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:17.4:-:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:17.4:r1:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:17.4:r1:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:17.4:r1-s1:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:17.4:r1-s1:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:17.4:r1-s2:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:17.4:r1-s2:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:17.4:r1-s4:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:17.4:r1-s4:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:17.4:r1-s5:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:17.4:r1-s5:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:17.4:r1-s6:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:17.4:r1-s6:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:17.4:r1-s7:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:17.4:r1-s7:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:17.4:r2:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:17.4:r2:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:17.4:r2-s1:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:17.4:r2-s1:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:17.4:r2-s10:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:17.4:r2-s10:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:17.4:r2-s2:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:17.4:r2-s2:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:17.4:r2-s3:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:17.4:r2-s3:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:17.4:r2-s4:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:17.4:r2-s4:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:17.4:r2-s5:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:17.4:r2-s5:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:17.4:r2-s6:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:17.4:r2-s6:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:17.4:r2-s7:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:17.4:r2-s7:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:17.4:r2-s8:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:17.4:r2-s8:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:18.1:-:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:18.1:-:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:18.1:r1:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:18.1:r1:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:18.1:r2:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:18.1:r2:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:18.1:r2-s1:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:18.1:r2-s1:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:18.1:r2-s2:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:18.1:r2-s2:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:18.1:r2-s4:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:18.1:r2-s4:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:18.1:r3:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:18.1:r3:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:18.1:r3-s1:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:18.1:r3-s1:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:18.1:r3-s2:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:18.1:r3-s2:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:18.1:r3-s3:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:18.1:r3-s3:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:18.1:r3-s4:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:18.1:r3-s4:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:18.1:r3-s6:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:18.1:r3-s6:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:18.1:r3-s7:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:18.1:r3-s7:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:18.1:r3-s8:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:18.1:r3-s8:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:18.2:-:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:18.2:-:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:18.2:r1:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:18.2:r1:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:18.2:r1:-:*:*:*:*:*
    cpe:2.3:o:juniper:junos:18.2:r1:-:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:18.2:r1-s3:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:18.2:r1-s3:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:18.2:r1-s4:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:18.2:r1-s4:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:18.2:r1-s5:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:18.2:r1-s5:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:18.2:r2:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:18.2:r2:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:18.2:r2-s1:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:18.2:r2-s1:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:18.2:r2-s2:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:18.2:r2-s2:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:18.2:r2-s3:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:18.2:r2-s3:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:18.2:r2-s4:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:18.2:r2-s4:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:18.2:r2-s5:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:18.2:r2-s5:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:18.2:r2-s6:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:18.2:r2-s6:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:18.3:-:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:18.3:-:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:18.3:r1:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:18.3:r1:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:18.3:r1-s1:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:18.3:r1-s1:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:18.3:r1-s2:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:18.3:r1-s2:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:18.3:r1-s3:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:18.3:r1-s3:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:18.3:r1-s5:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:18.3:r1-s5:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:18.3:r1-s6:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:18.3:r1-s6:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:18.3:r2:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:18.3:r2:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:18.3:r2-s1:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:18.3:r2-s1:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:18.3:r2-s2:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:18.3:r2-s2:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:18.4:-:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:18.4:-:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:18.4:r1:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:18.4:r1:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:18.4:r1-s1:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:18.4:r1-s1:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:18.4:r1-s2:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:18.4:r1-s2:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:18.4:r1-s5:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:18.4:r1-s5:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:18.4:r2:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:18.4:r2:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:18.4:r2-s1:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:18.4:r2-s1:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:18.4:r2-s2:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:18.4:r2-s2:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:19.1:-:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:19.1:-:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:19.1:r1:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:19.1:r1:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:19.1:r1-s1:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:19.1:r1-s1:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:19.1:r1-s2:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:19.1:r1-s2:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:19.1:r1-s3:*:*:*:*:*:*
    cpe:2.3:o:juniper:junos:19.1:r1-s3:*:*:*:*:*:*

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  • CVE-2025-2125 – A vulnerability has been found in Control iD RH iD 25.2.25.0 and classified as problematic. This vulnerability affects unknown code of the file /v2...
  • CVE-2025-2124 – A vulnerability, which was classified as problematic, was found in Control iD RH iD 25.2.25.0. This affects an unknown part of the file /v2/custome...