QID 352268

Date Published: 2021-04-26

QID 352268: Amazon Linux Security Advisory for pki-core: ALAS2-2021-1630

<DIV ID="issue_overview">
A Reflected Cross Site Scripting flaw was found in the pki-ca module from the pki-core server due to the CA Agent Service not properly sanitizing the certificate request page. An attacker could inject a specially crafted value that will be executed on the victim's browser. (CVE-2019-10146 )
It was found that the Key Recovery Authority (KRA) Agent Service did not properly sanitize recovery request search page, enabling a Reflected Cross Site Scripting (XSS) vulnerability. An attacker could trick an authenticated victim into executing specially crafted Javascript code. (CVE-2019-10179 )
A Reflected Cross Site Scripting vulnerability was found in the pki-ca module from the pki-core server. This flaw is caused by missing sanitization of the GET URL parameters. An attacker could abuse this flaw to trick an authenticated user into clicking a specially crafted link which can execute arbitrary code when viewed in a browser. (CVE-2019-10221 )
A flaw was found in the Key Recovery Authority (KRA) Agent Service where it did not properly sanitize the recovery ID during a key recovery request, enabling a Reflected Cross-Site Scripting (XSS) vulnerability. An attacker could trick an authenticated victim into executing specially crafted Javascript code. (CVE-2020-1721 )
A flaw was found in pki-core. A specially crafted POST request can be used to reflect a DOM-based cross-site scripting (XSS) attack to inject code into the search query form which can get automatically executed. The highest threat from this vulnerability is to data integrity. (CVE-2020-25715 )
A flaw was found in pki-core. An attacker who has successfully compromised a key could use this flaw to renew the corresponding certificate over and over again, as long as it is not explicitly revoked. The highest threat from this vulnerability is to data confidentiality and integrity. (CVE-2021-20179 )
</DIV>

Allows unauthorized disclosure of information; allows unauthorized modification; allows disruption of service.

  • CVSS V3 rated as Critical - 8.1 severity.
  • CVSS V2 rated as Medium - 5.5 severity.
  • Solution
    Please refer to Amazon advisory: ALAS-2021-1630 for affected packages and patching details, or update with your package manager.
    Vendor References
    Software Advisories
    Advisory ID Software Component Link
    ALAS-2021-1630 Amazon Linux 2 URL Logo alas.aws.amazon.com/AL2/ALAS-2021-1630.html