Vulnerability in Apache Tomcat
CVE-2016-0762
The Realm implementations in Apache Tomcat versions 9.0.0.M1 to 9.0.0.M9, 8.5.0 to 8.5.4, 8.0.0.RC1 to 8.0.36, 7.0.0 to 7.0.70 and 6.0.0 to 6.0.45 did not process the supplied password if the supplied user name did not exist. This made a timing attack possible to determine valid user names. Note that the default configuration includes the LockOutRealm which makes exploitation of this vulnerability harder.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.080 (94.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 95th percentile — 94.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.080 · newest: 0.080 · change: 0.000
Affected products
- Apache Tomcat — versions 9.0.0
- Apache Software Foundation Tomcat — versions 6.0.0 to 6.0.45, 8.5.0 to 8.5.4, 7.0.0 to 7.0.70
- NetApp Oncommand Insight
- NetApp Oncommand Shift
- NetApp Snap Creator Framework
- Oracle Communications Diameter Signaling Router
- Oracle Tekelec Platform Distribution
- Canonical Ubuntu Linux — versions 16.04
- Debian Linux — versions 8.0
- Red Hat Enterprise Linux Desktop — versions 7.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.securitytracker.com/id/1037144 (vdb-entry, Broken Link)
- lists.apache.org/thread.html/1872f96bad43647832bdd84a408794cd06d9cbb557af63085c… (mailing-list)
- access.redhat.com/errata/RHSA-2017:2247 (vendor-advisory, Third Party Advisory)
- rhn.redhat.com/errata/RHSA-2017-0457.html (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2017:0455 (vendor-advisory, Third Party Advisory)
- www.securityfocus.com/bid/93939 (vdb-entry, Broken Link)
- www.debian.org/security/2016/dsa-3720 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2017:0456 (vendor-advisory, Third Party Advisory)
- lists.apache.org/thread.html/343558d982879bf88ec20dbf707f8c11255f8e219e81d45c4f… (mailing-list)
- lists.apache.org/thread.html/b8a1bf18155b552dcf9a928ba808cbadad84c236d85eab3033… (mailing-list)
Frequently asked questions
- What is CVE-2016-0762?
- CVE-2016-0762 is a medium-severity vulnerability in Apache Tomcat, classified under Observable Discrepancy. CVSS score: 5.9/10. Published 2017-08-10.
- How severe is CVE-2016-0762?
- Medium severity. CVSS v3 base score is 5.9 out of 10.
- Is CVE-2016-0762 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.