Improper input validation in Apple Mac OS X
CVE-2015-6563
The monitor component in sshd in OpenSSH before 7.0 on non-OpenBSD platforms accepts extraneous username data in MONITOR_REQ_PAM_INIT_CTX requests, which allows local users to conduct impersonation attacks by leveraging any SSH login access in conjunction with control of the sshd uid to send a crafted MONITOR_REQ_PWNAM request, related to monitor.c and monitor_wrap.c.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.004 (29.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 30th percentile — 29.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.openwall.com/lists/oss-security/2015/08/22/1 (mailing-list)
- lists.fedoraproject.org/pipermail/package-announce/2015-August/165170.html (vendor-advisory)
- lists.apple.com/archives/security-announce/2015/Oct/msg00005.html (vendor-advisory)
- support.apple.com/HT205375
- www.securityfocus.com/bid/76317 (vdb-entry)
- github.com/openssh/openssh-portable/commit/d4697fe9a28dab7255c60433e4dd23cf7fce…
- www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
- security.gentoo.org/glsa/201512-04 (vendor-advisory)
- www.openssh.com/txt/release-7.0 (Vendor Advisory)
- www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
Frequently asked questions
- What is CVE-2015-6563?
- CVE-2015-6563 is a medium-severity vulnerability in Apple Mac OS X, classified under Improper Input Validation. CVSS score: 6.4/10. Published 2015-08-24.
- How severe is CVE-2015-6563?
- Medium severity. CVSS v3 base score is 6.4 out of 10.
- Is CVE-2015-6563 known to be exploited?
- 12 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.