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Detection rules › Sigma

Atlassian Bitbucket Command Injection Via Archive API

Status
test
Severity
high
Log source
category webserver
Author
Nasreddine Bencherchali (Nextron Systems)
Source
github.com/SigmaHQ/sigma

Detects attempts to exploit the Atlassian Bitbucket Command Injection CVE-2022-36804

Known false positives

  • Web vulnerability scanners

MITRE ATT&CK coverage

TacticTechniques
Initial Access

Rule body

title: Atlassian Bitbucket Command Injection Via Archive API
id: 65c0a0ab-d675-4441-bd6b-d3db226a2685
status: test
description: Detects attempts to exploit the Atlassian Bitbucket Command Injection CVE-2022-36804
references:
    - https://twitter.com/_0xf4n9x_/status/1572052954538192901
    - https://www.rapid7.com/blog/post/2022/09/20/cve-2022-36804-easily-exploitable-vulnerability-in-atlassian-bitbucket-server-and-data-center/
    - https://confluence.atlassian.com/bitbucketserver/bitbucket-server-and-data-center-advisory-2022-08-24-1155489835.html
    - https://blog.assetnote.io/2022/09/14/rce-in-bitbucket-server/
author: Nasreddine Bencherchali (Nextron Systems)
date: 2022-09-29
modified: 2023-01-02
tags:
    - attack.initial-access
    - attack.t1190
    - cve.2022-36804
    - detection.emerging-threats
logsource:
    category: webserver
detection:
    selection:
        cs-uri-query|contains|all:
            - '/rest/api/latest/projects/'
            - 'prefix='
            - '%00--exec'
    condition: selection
falsepositives:
    - Web vulnerability scanners
level: high

Stages and Predicates

Stage 0: condition

selection

Stage 1: selection

selection:
    cs-uri-query|contains|all:
        - '/rest/api/latest/projects/'
        - 'prefix='
        - '%00--exec'

Indicators

These rows show field, operator, and value matches.

FieldKindValuesSearch
cs-uri-querymatch
  • %00--exec
  • /rest/api/latest/projects/
  • prefix=
field:"cs-uri-query" kind:match