In ksh version 20120801, a flaw was found in the way it evaluates certain environment variables. An attacker could use this flaw to override or bypass environment restrictions to execute shell commands. Services and applications that allow remote unauthenticated attackers to provide one of those environment variables could allow them to exploit this issue remotely.
CVSS Details
- CVSS 3.1 Base Score: 7.4
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Apple Osx Ksh | — | Apply OS X security update 2020-003 High SierraApply OS X security update 2020-003 MojaveUpgrade macOS to the latest version | May 27, 2020 | Apr 2, 2020 |
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Apr 2, 2020 |
| Centos_linux | — | Upgrade ksh-debugsourceUpgrade kshUpgrade ksh-debuginfo | Feb 18, 2020 | Feb 17, 2020 |
| Debian | — | Upgrade ksh | Jul 23, 2020 | Apr 2, 2020 |
| Huawei Euleros 2_0_sp2 | — | Upgrade ksh | Jun 17, 2020 | Apr 2, 2020 |
| Huawei Euleros 2_0_sp3 | — | Upgrade ksh | Sep 28, 2020 | Apr 2, 2020 |
| Huawei Euleros 2_0_sp5 | — | Upgrade ksh | Sep 3, 2020 | Apr 2, 2020 |
| Huawei Euleros 2_0_sp8 | — | Upgrade ksh | May 27, 2020 | Apr 2, 2020 |
| Huawei Euleros 2_0_sp9 | — | Upgrade ksh | Feb 8, 2021 | Apr 2, 2020 |
| Oracle Solaris | — | Upgrade consolidation/osnet/osnet-incorporation to version 11.4-11.4.21.0.1.69.2 on Solaris 11.4Upgrade source/demo/ksh93 to version 93.21.1.20120801-11.4.24.0.1.75.1 on Solaris 11.4Upgrade shell/ksh93 to version 93.21.1.20120801-11.4.24.0.1.75.1 on Solaris 11.4Upgrade developer/astdev93 to version 93.21.1.20120801-11.4.24.0.1.75.1 on Solaris 11.4 | Jan 19, 2021 | Apr 2, 2020 |
| Oracle_linux | — | Upgrade ksh | Feb 19, 2020 | Dec 13, 2019 |
| Redhat_linux | — | No solution existsUpgrade ksh-debugsourceUpgrade kshUpgrade ksh-debuginfo | Feb 18, 2020 | Feb 17, 2020 |
| Ubuntu | — | Upgrade ksh (Ubuntu Pro) | Nov 19, 2024 | Apr 2, 2020 |
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