VulnerabilityModified
CVE-2001-1469
The RC4 stream cipher as used by SSH1 allows remote attackers to modify messages without detection by XORing the original message's cyclic redundancy check (CRC) with the CRC of a mask consisting of all the bits of the original message that were modified.
MEDIUM 5.0EPSS 1.21%
Does this matter?
Lower severity and a low EPSS score (1.21%). Track it; it rarely justifies an emergency change on its own.
Description
The RC4 stream cipher as used by SSH1 allows remote attackers to modify messages without detection by XORing the original message's cyclic redundancy check (CRC) with the CRC of a mask consisting of all the bits of the original message that were modified.
- CVSS 2.0
- 5.0 MEDIUMAV:N/AC:L/Au:N/C:N/I:P/A:N
- EPSS
- 1.21% probability · 67th percentile
- CISA KEV
- Not listed
- Affected
- ssh/ssh
- Source
- cve@mitre.org
References
- http://www.kb.cert.org/vuls/id/25309Exploit, US Government Resource
- https://exchange.xforce.ibmcloud.com/vulnerabilities/6449
- http://www.kb.cert.org/vuls/id/25309Exploit, US Government Resource
- https://exchange.xforce.ibmcloud.com/vulnerabilities/6449
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.