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CVE-2021-294859.9CriticalCWE-502

CVE-2021-29485: Remote Code Execution Vulnerability in Session Storage

ratpack

Affected: ratpack · Exploitation: possible (1 to 10%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

2.0%probability of exploitation in the next 30 days
80th percentile
050100

Higher than 80% of scored CVEs

9.9CriticalCVSS 3.1
LowCrit.

DescriptionCVE.org

Ratpack is a toolkit for creating web applications. In versions prior to 1.9.0, a malicious attacker can achieve Remote Code Execution (RCE) via a maliciously crafted Java deserialization gadget chain leveraged against the Ratpack session store. If one's application does not use Ratpack's session mechanism, it is not vulnerable. Ratpack 1.9.0 introduces a strict allow-list mechanism that mitigates this vulnerability when used. Two possible workarounds exist. The simplest mitigation for users of earlier versions is to reduce the likelihood of attackers being able to write to the session data store. Alternatively or additionally, the allow-list mechanism could be manually back ported by providing an alternative implementation of `SessionSerializer` that uses an allow-list.

Affected products1

From the CVE record. A product or version that is not listed is unknown, not unaffected.

  • ratpack · ratpack< 1.9.0

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

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Exploitation
Possible (1 to 10%). EPSS between 1% and 10%.
CISA KEV
Not listed
Public check
No public nuclei template
Vendor
ratpack
Published
June 2021

CoverageNo articles yet

No CyberSIXT article names CVE-2021-29485 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.

References

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