Buffer overflow in Cisco Activetouch General Plugin Container
CVE-2017-3823
An issue was discovered in the Cisco WebEx Extension before 1.0.7 on Google Chrome, the ActiveTouch General Plugin Container before 106 on Mozilla Firefox, the GpcContainer Class ActiveX control plugin before 10031.6.2017.0126 on Internet Explorer, and the Download Manager ActiveX control plugin before 2.1.0.10 on Internet Explorer. A vulnerability in these Cisco WebEx browser extensions could allow an unauthenticated, remote attacker to execute arbitrary code with the privileges of the affected browser on an affected system. This vulnerability affects the browser extensions for Cisco WebEx Meetings Server and Cisco WebEx Centers (Meeting Center, Event Center, Training Center, and Support Center) when they are running on Microsoft Windows. The vulnerability is a design defect in an application programing interface (API) response parser within the extension. An attacker that can convince an affected user to visit an attacker-controlled web page or follow an attacker-supplied link with an affected browser could exploit the vulnerability. If successful, the attacker could execute arbitrary code with the privileges of the affected browser.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.272 (98.1th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 98.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.272 · newest: 0.272 · change: 0.000
Affected products
- Cisco Activetouch General Plugin Container — versions 105
- Cisco Download Manager — versions 2.1.0.9
- Cisco Gpccontainer Class
- Cisco Webex
- Cisco Webex Meeting Center — versions 2.6_base, 2.6_mr1, 2.6_mr2
- Cisco Webex Meetings Server — versions 2.0_base, 2.0_mr2, 2.0_mr3
- Cisco Webex Browser Extensions — versions Cisco WebEx browser extensions
Weakness classification (CWE)
Public proof-of-concept exploits
References
- bugs.chromium.org/p/project-zero/issues/detail (Technical Description, Third Party Advisory)
- 0patch.blogspot.com/2017/01/micropatching-remote-code-execution-in.html
- www.kb.cert.org/vuls/id/909240 (third-party-advisory)
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170124… (Vendor Advisory)
- blog.filippo.io/webex-extension-vulnerability/
- www.securityfocus.com/bid/95737 (VDB Entry, Third Party Advisory, vdb-entry)
- www.securitytracker.com/id/1037680 (vdb-entry)
- bugs.chromium.org/p/project-zero/issues/detail
Frequently asked questions
- What is CVE-2017-3823?
- CVE-2017-3823 is a high-severity vulnerability in Cisco Activetouch General Plugin Container, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.8/10. Published 2017-02-01.
- How severe is CVE-2017-3823?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2017-3823 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.