Vulnerability in Oasis-Open Oasis Digital Signature Services
CVE-2020-13101
In OASIS Digital Signature Services (DSS) 1.0, an attacker can control the validation outcome (i.e., trigger either a valid or invalid outcome for a valid or invalid signature) via a crafted XML signature, when the InlineXML option is used. This defeats the expectation of non-repudiation.
EPSS: 0.007 (50.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
Affected products
- Oasis-open Oasis_digital_signature_services — versions 1.0
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (x_refsource_MISC, Vendor Advisory)
- cve@mitre.org (x_refsource_CONFIRM, Vendor Advisory)
- cve@mitre.org (Permissions Required, x_refsource_MISC, Vendor Advisory)
Frequently asked questions
- What is CVE-2020-13101?
- CVE-2020-13101 is a high-severity vulnerability in Oasis-Open Oasis Digital Signature Services, classified under Improper Verification of Cryptographic Signature. CVSS score: 7.5/10. Published 2020-08-24.
- How severe is CVE-2020-13101?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2020-13101 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.