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CVE 2024 23897 jenkins cli #1517

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CVE 2024 23897 jenkins cli #1517

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d5d3ef6
Add CVE-2022-1388 F5 BIG-IP vulnerability detection module
Prajwal5755 Mar 22, 2026
ffab357
Added correct headers and multiple endpoints
Prajwal5755 Apr 9, 2026
db7c1d0
Add cve_2024_23897_jenkins_cli
Prajwal5755 Apr 15, 2026
569e175
Add jenkins_cve_2024_23897
Prajwal5755 Apr 15, 2026
a3e93ba
Adding ssl
Prajwal5755 Apr 16, 2026
e260795
Merge branch 'master' into cve-2024-23897-jenkins-cli
securestep9 Apr 27, 2026
ef10f0d
Resolved issues regarding profiles refference and log
Prajwal5755 Apr 28, 2026
d81b610
Bump flask from 3.1.2 to 3.1.3 (#1331)
dependabot[bot] Mar 27, 2026
9b26696
Adding jenkins module to Modules.md
Prajwal5755 Apr 28, 2026
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1 change: 1 addition & 0 deletions docs/Modules.md
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Original file line number Diff line number Diff line change
Expand Up @@ -210,6 +210,7 @@ If you want to scan all ports please define -g 1-65535 range. Otherwise Nettacke
- '**http_options_enabled_vuln**' – check if OPTIONS method is enabled on the web server
- '**ivanti_epmm_cve_2023_35082_vuln**' – check the target for Ivanti EPMM CVE-2023-35082 vulnerability
- '**ivanti_ics_cve_2023_46805_vuln**' – check the target for Ivanti ICS CVE-2023-46805 vulnerability
- '**jenkins_cve_2024_23897_vuln**' – check the target for Jenkins CVE-2024-23897 arbitrary file read vulnerability via @file argument parsing.
- '**joomla_cve_2023_23752_vuln**' – check the target for Joomla CVE-2023-23752 information disclosure
- '**justwriting_cve_2021_41878_vuln**' – check the target for JustWriting CVE-2021-41878
- '**log4j_cve_2021_44228_vuln**' – check the target for Log4Shell CVE-2021-44228 vulnerability
Expand Down
58 changes: 58 additions & 0 deletions nettacker/modules/vuln/jenkins_cve_2024_23897.yaml
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@@ -0,0 +1,58 @@
info:
name: jenkins_cve_2024_23897_vuln
author: Prajwal G N (@Prajwal5755)
severity: 7.5
description: Detects Jenkins CVE-2024-23897 arbitrary file read via CLI argument parsing using @file syntax.
reference:
- https://www.cisa.gov/news-events/alerts/2024/08/19/cisa-adds-one-known-exploited-vulnerability-catalog
profiles:
- vuln
Comment on lines +8 to +9

@chatgpt-codex-connector chatgpt-codex-connector Bot Jul 25, 2026

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P2 Badge Include the module in the HTTP profile

When users scan with --profile http, this module is omitted because profile resolution in ArgParser.load_profiles relies exclusively on the entries in info.profiles, and this list lacks http. It is also the only vulnerability module using the HTTP library without that profile tag, so HTTP-profile scans will unexpectedly skip the new Jenkins check.

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- jenkins
- cve
- cve2024
- high_severity
- cisa_kev

@securestep9 securestep9 Apr 27, 2026

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@Prajwal5755 high_severity and cisa_kev profiles missing. Please study existing Nettacker modules to understand which profiles you need

@Prajwal5755 Prajwal5755 Apr 28, 2026

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Thank you for the guidance @securestep9. I have added the missing profiles and updated this module. I will also update my other modules accordingly.

payloads:
- library: http
steps:

- method: post
timeout: 3
headers:
User-Agent: "{user_agent}"
Content-Type: "text/plain"
ssl: false

Comment on lines +20 to +26

@coderabbitai coderabbitai Bot Apr 15, 2026

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⚠️ Potential issue | 🟠 Major

Add explicit ssl on the HTTP step.

Line 17–22 defines the HTTP step without an explicit ssl field. Please set it explicitly to avoid ambiguous transport behavior across targets.

Suggested patch 
       - method: post
         timeout: 3
+        ssl: false
         headers:
           User-Agent: "{user_agent}"
           Content-Type: "text/plain"

Based on learnings: “Every HTTP step must include headers.User-Agent: "{user_agent}", ssl:, and the info block must include reference:.”

🤖 Prompt for AI Agents 
Verify each finding against the current code and only fix it if needed.

In `@nettacker/modules/vuln/jenkins_cve_2024_23897.yaml` around lines 17 - 22, The
HTTP step that currently shows method: post with headers.User-Agent and
Content-Type needs an explicit ssl field to avoid ambiguous transport—add ssl:
true (or ssl: false if this target is known plaintext) directly under the step
alongside timeout, and ensure the rule's info block includes a reference: entry
(e.g., info.reference: "CVE-2024-23897" or a vendor advisory) so the file
jenkins_cve_2024_23897.yaml contains headers.User-Agent: "{user_agent}", an
explicit ssl setting, and an info.reference value.

url:
nettacker_fuzzer:
input_format: "{{schema}}://{target}:{{ports}}{{path}}"

@chatgpt-codex-connector chatgpt-codex-connector Bot Jul 25, 2026

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P2 Badge Honor the target's Jenkins context path

When a user supplies a target such as https://host/jenkins, Nettacker.expand_targets removes /jenkins from the hostname and stores it in url_base_path, but this URL template never inserts that value. The request therefore goes to /cli instead of /jenkins/cli, causing false negatives for Jenkins installations deployed under a context path even when the user provided the correct application URL.

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prefix: ""
interceptors: []
suffix: ""
data:
schema:
- "http"
- "https"
path:
- '/cli'
ports:
- 80
- 443
- 8080
- 8443


data: |
help @/etc/passwd
Comment on lines +46 to +47

@chatgpt-codex-connector chatgpt-codex-connector Bot Jul 25, 2026

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P1 Badge Send a valid Jenkins CLI protocol exchange

On a real vulnerable Jenkins instance, /cli does not interpret a text/plain request body as command-line arguments. The HTTP CLI transport requires paired upload/download requests with a shared session, Side headers, and CLI-framed binary arguments; HttpEngine sends this as one ordinary POST. Consequently, help @/etc/passwd is never executed and the content matcher cannot observe the file contents, making this module consistently return false negatives.

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Comment on lines +46 to +47

@chatgpt-codex-connector chatgpt-codex-connector Bot Jul 25, 2026

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P2 Badge Probe a file that exists on Windows hosts

When the vulnerable Jenkins controller runs on Windows, /etc/passwd does not exist, so even after the CLI request is encoded correctly this probe produces no matching file content and reports a false negative. CVE-2024-23897 is not limited to Unix installations; add a Windows-specific file probe and response marker alongside the Unix check.

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response:
condition_type: and
conditions:
status_code:
regex: "200"
reverse: false
content:
regex: "(root:x:0|daemon:x:1)"
reverse: false