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GHSA-qp5m-c3m9-8q2p

HighCVSS 8.2 / 10
Published Aug 6, 2022·Last modified Nov 8, 2023
Affected Components(0)

No affected components available

Description

Impact

The JSPUI resumable upload implementations in SubmissionController and FileUploadRequest are vulnerable to multiple path traversal attacks, allowing an attacker to create files/directories anywhere on the server writable by the Tomcat/DSpace user, by modifying some request parameters during submission. This path traversal can only be executed by a user with special privileges (submitter rights). This vulnerability only impacts the JSPUI.

This vulnerability does NOT impact the XMLUI or 7.x.

Patches

DSpace 6.x:

  • Fixed in 6.4 via commit: https://github.com/DSpace/DSpace/commit/7569c6374aefeafb996e202cf8d631020eda5f24
  • 6.x patch file: https://github.com/DSpace/DSpace/commit/7569c6374aefeafb996e202cf8d631020eda5f24.patch (may be applied manually if an immediate upgrade to 6.4 or above is not possible)

DSpace 5.x:

  • Fixed in 5.11 via commit: https://github.com/DSpace/DSpace/commit/d1dd7d23329ef055069759df15cfa200c8e3
  • 5.x patch file: https://github.com/DSpace/DSpace/commit/d1dd7d23329ef055069759df15cfa200c8e3.patch (may be applied manually if an immediate upgrade to 5.11 or 6.4 is not possible)

Apply the patch to your DSpace

If at all possible, we recommend upgrading your DSpace site based on the upgrade instructions. However, if you are unable to do so, you can manually apply the above patches as follows:

  1. Download the appropriate patch file to the machine where DSpace is running
  2. From the [dspace-src] folder, apply the patch, e.g. git apply [name-of-file].patch
  3. Now, update your DSpace site (based loosely on the Upgrade instructions). This generally involves three steps:
    1. Rebuild DSpace, e.g. mvn -U clean package (This will recompile all DSpace code)
    2. Redeploy DSpace, e.g. ant update (This will copy all updated WARs / configs to your installation directory). Depending on your setup you also may need to copy the updated WARs over to your Tomcat webapps folder.
    3. Restart Tomcat

Workarounds

There are no known workarounds. However, this vulnerability cannot be exploited by an anonymous user or a basic user. The user must first have submitter privileges to at least one Collection and be able to determine how to modify the request parameters to exploit the vulnerability.

References

Discovered & reported by Johannes Moritz of Ripstech

For more information

If you have any questions or comments about this advisory:

  • Email us at security@dspace.org
Risk Scores
Base Score
8.2

The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker needs high-level or administrative privileges. No user interaction is needed for the attacker to exploit this vulnerability. The vulnerability can affect other systems as well, not just the initial system. There is a low impact on the confidentiality of the information. There is a low impact on the integrity of the data. There is a high impact on the availability of the system.

Threat Intelligence
7.5

Exploitation activity has been observed. Apply available patches or mitigations urgently.

EPSS
1.06%

The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

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