5.4

CVE-2021-29872: ibm cloud_pak_for_automation Improper Encoding or Escaping of Output

CVSS: 5.4v3.0MediumModified
Published 18-01-2022Last modified 16-09-2024

Vulnerability summary

CVE-2021-29872 is a medium (CVSS 5.4) Improper Encoding or Escaping of Output vulnerability in ibm cloud_pak_for_automation. EPSS estimates a 0.77% chance of exploitation in the next 30 days, higher than 55.1% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.4/10
010
Medium · v3.0 (CVE.org)
EPSS score
0.77%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 18-01-2022
    PublishedVulnerability first disclosed.
  2. 16-09-2024
    Last modifiedVulnerability information updated.

Description

IBM Cloud Pak for Automation 21.0.1 and 21.0.2 - Business Automation Studio Component is vulnerable to HTTP header injection, caused by improper validation of input by the HOST headers. By sending a specially crafted HTTP request, a remote attacker could exploit this vulnerability to inject HTTP HOST header, which will allow the attacker to conduct various attacks against the vulnerable system, including cross-site scripting, cache poisoning or session hijacking. IBM X-Force ID: 206228.

CVSS metrics

4 scores · 2 sources · 3 versions

EPSS trend

Probability

0.77%

Chance of exploitation in the next 30 days

Percentile

55%

Versus all other CVEs

30-day change

0.00 pp

From 0.77% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.77%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ibm1 product
  • cloud_pak_for_automation< 21.0.2 | 21.0.2 | 21.0.2:interim_fix001 | 21.0.2:interim_fix002 | 21.0.2:interim_fix003 | 21.0.2:interim_fix004 | 21.0.2:interim_fix005 | 21.0.2:interim_fix006 | < 21.0.1 | 21.0.1 | 21.0.1:interim_fix001 | 21.0.1:interim_fix002 | 21.0.1:interim_fix003 | 21.0.1:interim_fix004 | 21.0.1:interim_fix005 | 21.0.1:interim_fix006

1 vendor · 1 product

References

2 links