XXE in Ivanti Connect Secure
CVE-2020-8256
A vulnerability in the Pulse Connect Secure < 9.1R8.2 admin web interface could allow an authenticated attacker to gain arbitrary file reading access through Pulse Collaboration via XML External Entity (XXE) vulnerability.
Vulnerability class: XXE (XML External Entity)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.034 (88.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 88th percentile — 88.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.034 · newest: 0.034 · change: 0.000
Affected products
- Ivanti Connect Secure — versions 9.1
- Pulsesecure Pulse Connect Secure
- Pulse Connect Secure — versions Fixed in 9.1R8.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44588 (Vendor Advisory)
- www.gosecure.net/blog/2020/11/13/forget-your-perimeter-part-2-four-vulnerabilit… (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-8256?
- CVE-2020-8256 is a medium-severity vulnerability in Ivanti Connect Secure, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 4.9/10. Published 2020-09-30.
- How severe is CVE-2020-8256?
- Medium severity. CVSS v3 base score is 4.9 out of 10.
- Is CVE-2020-8256 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.