8.8

CVE-2020-8163: debian debian_linux Improper Control of Generation of Code

Modified
AliasesSUSE-SU-2020:2140-1UBUNTU-CVE-2020-8163DEBIAN-CVE-2020-8163
Published 02-07-2020Last modified 04-08-2024

Vulnerability summary

CVE-2020-8163 is a high (CVSS 8.8) Improper Control of Generation of Code vulnerability in debian debian_linux. EPSS estimates a 82.47% chance of exploitation in the next 30 days, higher than 99.6% of scored vulnerabilities. 2 public exploits are recorded.

Priority
Prioritisepublic exploit

Public exploit (exploit-database, 26-07-2020)

Source freshness unavailable

How is this decided?
CVSS score
8.8/10
010
High · v3.1 (NVD)
EPSS score
82.47%
0%100%
Critical · +0.42 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits2reference, exploit-database

Advisory lineage

Upstream 0 · Downstream 1
DLA-2282-1

Timeline

  1. 02-07-2020
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

The is a code injection vulnerability in versions of Rails prior to 5.0.1 that wouldallow an attacker who controlled the `locals` argument of a `render` call to perform a RCE.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

82.47%

Chance of exploitation in the next 30 days

Percentile

100%

Versus all other CVEs

30-day change

Increase +0.42 pp

From 82.05% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

2 found
  • referenceUnverified

    Exploit Reference (packetstormsecurity.com)

    Maturity: unknown

  • exploit-databaserubyUnverified

    Rails 5.0.1 - Remote Code Execution

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Suse8 products
  • rubygem-actionview-4_2&distro=SUSE OpenStack Cloud 6-LTSS< 4.2.9-9.9.1
  • rubygem-actionview-4_2&distro=SUSE OpenStack Cloud 7< 4.2.9-9.9.1
  • rubygem-actionview-4_2&distro=SUSE OpenStack Cloud Crowbar 8< 4.2.9-9.9.1
  • rubygem-actionview-4_2&distro=SUSE OpenStack Cloud Crowbar 9< 4.2.9-9.9.1
  • rubygem-activesupport-4_2&distro=SUSE OpenStack Cloud 6-LTSS< 4.2.9-7.6.1
Debian2 products
RubyGems1 product
  • actionview< 4.2.11.3
Rubyonrails1 product
Ubuntu1 product
  • railsAll versions (No fix recorded)

5 vendors · 13 products

References

16 links
Show all 16 references