CVE-2019-11454 — Persistent cross-site scripting (XSS) in http/cervlet
Persistent cross-site scripting (XSS) in http/cervlet.c in Tildeslash Monit before 5.25.3 allows a remote unauthenticated attacker to introduce arbitrary JavaScript via manipulation of an unsanitized user field of the Authorization header for HTTP Basic Authentication, which is m
Published
2019-04-22T15:05:51.000Z
Last modified
2024-08-04T22:55:40.389Z
01What is this vulnerability?
Persistent cross-site scripting (XSS) in http/cervlet.c in Tildeslash Monit before 5.25.3 allows a remote unauthenticated attacker to introduce arbitrary JavaScript via manipulation of an unsanitized user field of the Authorization header for HTTP Basic Authentication, which is mishandled during an _viewlog operation.
02Affected products
| Vendor | Product | Versions |
|---|
| n | a / n/a | n/a |
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: 2019-04-22T15:05:51.000Z
- Last modified: 2024-08-04T22:55:40.389Z
09References
- bitbucket.org — https://bitbucket.org/tildeslash/monit/commits/328f60773057641c4b2075fab9820145e…
- bitbucket.org — https://bitbucket.org/tildeslash/monit/commits/1a8295eab6815072a18019b668fe08494…
- github.com — https://github.com/dzflack/exploits/blob/master/unix/monit_xss.py
- lists.debian.org — https://lists.debian.org/debian-lts-announce/2019/04/msg00028.html
- usn.ubuntu.com — https://usn.ubuntu.com/3971-1/
- lists.fedoraproject.org — https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro…
- lists.fedoraproject.org — https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro…
- lists.debian.org — https://lists.debian.org/debian-lts-announce/2021/12/msg00018.html
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