CVE-2021-20450 json
IBM Cognos Controller information disclosure
published 2024-05-03 2 y ago modified 2026-06-17 4 mo ago also EUVD-2021-7868
- cvss
- 4.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 30%
- public exploits
- 0
- none known
Summary
IBM Cognos Controller 10.4.1, 10.4.2, and 11.0.0 does not set the secure attribute on authorization tokens or session cookies. Attackers may be able to get the cookie values by sending a http:// link to a user or by planting this link in a site the user goes to. The cookie will be sent to the insecure link and the attacker can then obtain the cookie value by snooping the traffic. IBM X-Force ID: 196640.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
0.37% chance of exploitation in the next 30 days, higher than 30% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N |
Affected products
- IBM Cognos Controller
Classification
- Weakness
-
- CWE-565 Reliance on Cookies without Validation and Integrity Checking
References
-
ibm.com
/support/pages/node/7149876
vendor-advisory
-
exchange.xforce.ibmcloud.com
/vulnerabilities/196640
vdb-entry, vendor-advisory
Sources
- CVE List CVE-2021-20450
- NVD CVE-2021-20450
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.