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Publicado Jun. 25, 2030

SQL injection Sleepy user agent attack

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Anishq Sharma

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Issue

  • Liferay does not restrict a URL that has a 'sleepy user agent' query appended to it like:
    https://domain/page?1%2b(select*from(select(sleep(x)))a)%2b=1

Environment

  • Liferay DXP 7.4

Resolution

  • Sleepy user agent payload gets a page in sleep mode(inactive) for x seconds of time, which is not the observed behavior on the Liferay portal.
  • There would be the addition of an SQL query in the User-agent header of the page, which is also False in this case.
  • Hence, this vulnerability is not present on Liferay.

Additional Information

  • In order to check the User-agent header, the user can perform a network analysis of all the requests/responses on the website through Chrome's developer tool.
  • Unofficial Ref: The Sleepy User Agent
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