CVE-2022-31525

The SummaLabs/DLS repository through 0.1.0 on GitHub allows absolute path traversal because the Flask send_file function is used unsafely

published July 11, 2022

CVSS
—
EPSS
1%
Percentile
71.1
In the wild
Unconfirmed
What it is

⚠️ Watch out for a path that goes beyond the expected! This vulnerability in the SummaLabs/DLS repository allows absolute path traversal due to the unsafe use of Flask's send_file function. Think of it like a restaurant where the waiter accepts orders written on any piece of paper, even if the customer requests a dish from another restaurant across town — they just deliver it without checking! This flaw opens the door for attackers to access files they shouldn't be able to reach. An attacker could snag sensitive files from the server, potentially exposing confidential data — imagine a thief rummaging through your office drawers and finding all your secret documents. While the exploit isn't actively known to be used, the risk of unauthorized data exposure is absolutely something to take seriously.

Put simply

Think of it like a restaurant where the waiter accepts orders written on any piece of paper, even if the customer requests a dish from another restaurant across town — they just deliver it without checking! This flaw opens the door for attackers to access files they shouldn't be able to reach. The vulnerability lies in the way the send_file function is implemented, allowing attacker-controlled paths to be processed, leading to unauthorized file access. Essentially, the server blindly trusts the paths it is given without adequate validation.

What to do

An attacker could snag sensitive files from the server, potentially exposing confidential data — imagine a thief rummaging through your office drawers and finding all your secret documents. While the exploit isn't actively known to be used, the risk of unauthorized data exposure is absolutely something to take seriously. To safeguard your application, patch to a version above 0.1.0 as soon as possible, and review the usage of the send_file function to ensure that path checks are in place. Implement strict validation for file paths to prevent unauthorized access. You've got this! Stay on top of your security game and keep your systems safe! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01337 · 71.1th percentile
Published
2022-07-11T00:55Z
EPSS history
Timeline
  • 11 JUL 00:55Z
    The SummaLabs/DLS repository through 0.1.0 on GitHub allows absolute path traversal because the Flask send_file function is used unsafely
    cvelistv5