Vulnerability in Esri Portal For Arcgis
CVE-2021-29108
There is an privilege escalation vulnerability in organization-specific logins in Esri Portal for ArcGIS versions 10.9 and below that may allow a remote, authenticated attacker who is able to intercept and modify a SAML assertion to impersonate another account (XML Signature Wrapping Attack). In addition patching, Esri also strongly recommends as best practice for SAML assertions to be signed and encrypted.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.008 (55.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 55.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
- Esri Portal For Arcgis — versions 10.9.0
- Esri Portal For Arcgis
Weakness classification (CWE)
References
- www.esri.com/arcgis-blog/products/arcgis-enterprise/administration/Portal-for-A… (Vendor Advisory)
- downloads.esri.com/RESOURCES/ENTERPRISEGIS/Organization-Specific_Logins_FAQs.pdf (Technical Description, Product)
Frequently asked questions
- What is CVE-2021-29108?
- CVE-2021-29108 is a high-severity vulnerability in Esri Portal For Arcgis, classified under Improper Verification of Cryptographic Signature. CVSS score: 8.8/10. Published 2021-10-01.
- How severe is CVE-2021-29108?
- High severity. CVSS v3 base score is 8.8 out of 10.