CVE-2019-10071 — The code which checks HMAC in form submissions used String
The code which checks HMAC in form submissions used String.equals() for comparisons, which results in a timing side channel for the comparison of the HMAC signatures. This could lead to remote code execution if an attacker is able to determine the correct signature for their payl
Published
2019-09-16T17:46:19.000Z
Last modified
2024-08-04T22:10:09.295Z
01What is this vulnerability?
The code which checks HMAC in form submissions used String.equals() for comparisons, which results in a timing side channel for the comparison of the HMAC signatures. This could lead to remote code execution if an attacker is able to determine the correct signature for their payload. The comparison should be done with a constant time algorithm instead.
02Affected products
| Vendor | Product | Versions |
|---|
| Apache | Apache Tapestry | Apache Tapestry 5.4.0 to 5.4.3 |
03Active exploitation status
Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.
04Recommended remediation
- Patch to a fixed version listed in the vendor advisory (see references below).
- Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
- Hunt historical logs for exploitation indicators — see Detection signatures below.
05Technical details
For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.
06Detection signatures
Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.
07Related CVEs
No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.
08Timeline
- Published: 2019-09-16T17:46:19.000Z
- Last modified: 2024-08-04T22:10:09.295Z
09References
- lists.apache.org — https://lists.apache.org/thread.html/6e8f42c88da7be3c60aafe3f6a85eb00b4f8b444de2…
- lists.apache.org — https://lists.apache.org/thread.html/bac8d6f9e1b4059b319d9cba6f33219a99b81623476…
- lists.apache.org — https://lists.apache.org/thread.html/7a437dad5af7309aba4d01bfc2463b3ac34e6aafaa5…
- lists.apache.org — https://lists.apache.org/thread.html/r87523dd07886223aa086edc25fe9b8ddb9c1090f7d…
- lists.apache.org — https://lists.apache.org/thread.html/r7d9c54beb1dc97dcccc58d9b5d31f0f7166f9a25ad…
Want this in your SOAR or SIEM?
SARA's API returns EPSS, CVSS, KEV, and an analyst-grade summary in one call.
Read the API reference →