Improper input validation in Varnish.projects.linpro Varnish
CVE-2009-4488
Varnish 2.0.6 writes data to a log file without sanitizing non-printable characters, which might allow remote attackers to modify a window's title, or possibly execute arbitrary commands or overwrite files, via an HTTP request containing an escape sequence for a terminal emulator. NOTE: the vendor disputes the significance of this report, stating that "This is not a security problem in Varnish or any other piece of software which writes a logfile. The real problem is the mistaken belief that you can cat(1) a random logfile to your terminal safely.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.130 (96.2th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 96th percentile — 96.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.128 · newest: 0.130 · change: +0.002
Affected products
- Varnish.projects.linpro Varnish — versions 2.0.6
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.ush.it/team/ush/hack_httpd_escape/adv.txt (Exploit)
- www.securityfocus.com/bid/37713 (Exploit, vdb-entry)
- www.securityfocus.com/archive/1/508830/100/0/threaded (mailing-list)
Frequently asked questions
- What is CVE-2009-4488?
- CVE-2009-4488 is a critical-severity vulnerability in Varnish.projects.linpro Varnish, classified under Improper Input Validation. CVSS score: 9.8/10. Published 2010-01-13.
- How severe is CVE-2009-4488?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2009-4488 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.