CVE-2023-22899
MEDIUMCVSS 5.9/10EPSS 0.62%
Last modified
CVE-2023-22899 is a medium-severity vulnerability rated 5.9/10 on the CVSS scale. Zip4j through 2.11.2, as used in Threema and other products, does not always check the MAC when decrypting a ZIP archive.. EPSS estimates a 0.62% chance of exploitation in the next 30 days.
Description
Zip4j through 2.11.2, as used in Threema and other products, does not always check the MAC when decrypting a ZIP archive.
Metrics
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Zip4j Project | Zip4j | <= 2.11.2 |
References
- https://breakingthe3ma.appThird Party Advisory
- https://breakingthe3ma.app/files/Threema-PST22.pdfExploit, Technical Description, Third Party Advisory
- https://github.com/srikanth-lingala/zip4j/issues/485Exploit, Issue Tracking, Patch, Third Party Advisory
- https://github.com/srikanth-lingala/zip4j/releasesRelease Notes, Third Party Advisory
- https://news.ycombinator.com/item?id=34316206Third Party Advisory
- https://breakingthe3ma.appThird Party Advisory
- https://breakingthe3ma.app/files/Threema-PST22.pdfExploit, Technical Description, Third Party Advisory
- https://github.com/srikanth-lingala/zip4j/issues/485Exploit, Issue Tracking, Patch, Third Party Advisory
- https://github.com/srikanth-lingala/zip4j/releasesRelease Notes, Third Party Advisory
- https://news.ycombinator.com/item?id=34316206Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2023-22899?
Zip4j through 2.11.2, as used in Threema and other products, does not always check the MAC when decrypting a ZIP archive.
How severe is CVE-2023-22899?
CVE-2023-22899 has a CVSS score of 5.9/10 (MEDIUM severity). The EPSS model estimates a 0.62% probability of exploitation in the next 30 days.
How do I fix CVE-2023-22899?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
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Are you affected by CVE-2023-22899?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST