Vulnerability in Jsrsasign Project
CVE-2024-21484
Versions of the package jsrsasign before 11.0.0 are vulnerable to Observable Discrepancy via the RSA PKCS1.5 or RSAOAEP decryption process. An attacker can decrypt ciphertexts by exploiting the Marvin security flaw. Exploiting this vulnerability requires the attacker to have access to a large number of ciphertexts encrypted with the same key. Workaround The vulnerability can be mitigated by finding and replacing RSA and RSAOAEP decryption with another crypto library.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:L.
EPSS exploit prediction
EPSS: 0.010 (60.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 60th percentile — 60.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000
Affected products
- Jsrsasign Project
- Kjur Jsrsasign
- Jsrsasign — versions 0
- Org.webjars.bowergithub.kjur:jsrsasign — versions 0
- Org.webjars.bower:jsrsasign — versions 0
- Org.webjars.npm:jsrsasign — versions 0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security.snyk.io/vuln/SNYK-JS-JSRSASIGN-6070731 (Patch, Third Party Advisory)
- security.snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-6070732 (Patch, Third Party Advisory)
- security.snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWERGITHUBKJUR-6070733 (Patch, Third Party Advisory)
- security.snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWER-6070734 (Patch, Third Party Advisory)
- github.com/kjur/jsrsasign/issues/598 (Exploit, Issue Tracking, Vendor Advisory)
- github.com/kjur/jsrsasign/releases/tag/11.0.0 (Patch, Release Notes)
- people.redhat.com/~hkario/marvin/
Frequently asked questions
- What is CVE-2024-21484?
- CVE-2024-21484 is a high-severity vulnerability in Jsrsasign Project, classified under Observable Discrepancy. CVSS score: 7.5/10. Published 2024-01-22.
- How severe is CVE-2024-21484?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2024-21484 known to be exploited?
- 6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.