CVE-2020-27749
published 2021-03-03CVE-2020-27749: A flaw was found in grub2 in versions prior to 2.06. Variable names present are expanded in the supplied command line into their corresponding variable…
PriorityP432medium6.7CVSS 3.1
AVLACLPRHUINSUCHIHAH
EPSS
0.57%
46.7th percentile
A flaw was found in grub2 in versions prior to 2.06. Variable names present are expanded in the supplied command line into their corresponding variable contents, using a 1kB stack buffer for temporary storage, without sufficient bounds checking. If the function is called with a command line that references a variable with a sufficiently large payload, it is possible to overflow the stack buffer, corrupt the stack frame and control execution which could also circumvent Secure Boot protections. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Affected
27 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | grub2 | < grub2 2.04-16 (bookworm) | grub2 2.04-16 (bookworm) |
| fedoraproject | fedora | — | — |
| fedoraproject | fedora | — | — |
| gnu | grub2 | < 2.06 | 2.06 |
| gnu | grub2 | — | — |
| gnu | grub2 | >= 0 < 2.04-16 | 2.04-16 |
| gnu | grub2 | >= 0 < 2.04-16 | 2.04-16 |
| gnu | grub2 | >= 0 < 2.04-16 | 2.04-16 |
| gnu | grub2 | >= 0 < 2.04-16 | 2.04-16 |
| msrc | cbl2_grub2_2.06rc1-7_on_cbl_mariner_2.0 | — | — |
| msrc | cm1_grub2_2.06rc1-4_on_cbl_mariner_1.0 | — | — |
| redhat | enterprise_linux | — | — |
| redhat | enterprise_linux | — | — |
| redhat | enterprise_linux_server_aus | — | — |
| redhat | enterprise_linux_server_aus | — | — |
| redhat | enterprise_linux_server_aus | — | — |
| redhat | enterprise_linux_server_aus | — | — |
| redhat | enterprise_linux_server_aus | — | — |
| redhat | enterprise_linux_server_aus | — | — |
| redhat | enterprise_linux_server_eus | — | — |
| redhat | enterprise_linux_server_eus | — | — |
| redhat | enterprise_linux_server_eus | — | — |
| redhat | enterprise_linux_server_tus | — | — |
| redhat | enterprise_linux_server_tus | — | — |
| redhat | enterprise_linux_server_tus | — | — |
CVSS provenance
nvdv3.16.7MEDIUMCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
nvdv2.07.2HIGHAV:L/AC:L/Au:N/C:C/I:C/A:C
osv7.5HIGH
vendor_ubuntu7.5HIGH
vendor_debian6.7MEDIUM
vendor_msrc6.7MEDIUM
vendor_redhat6.7MEDIUM
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CISA ICS
Hitachi Energy APM Edge (Update A)
cisa_ics·2021-12-02·CVSS 9.1
[CRITICAL] Hitachi Energy APM Edge (Update A)
## Archived Content In an effort to keep CISA.gov current, the archive contains outdated information that may not reflect current policy or programs.
ICS Advisory
##
Hitachi Energy APM Edge (Update A)
Last RevisedOctober 18, 2022
Alert CodeICSA-21-336-06
## 1. EXECUTIVE SUMMARY
- CVSS v3 8.2
- ATTENTION: Low attack complexity
- Vendor: Hitachi Energy
- Equipment: Transformer Asset Performance Management (APM) Edge
- Vulnerability: Reliance on Uncontrolled Component
## 2. UPDATE OR REPOSTED INFORMATION
This updated advisory is a follow-up to the original advisory titled “ICSA-21-336-06 Hitachi Energy APM Edge” that was published December 02, 2021, on the ICS webpage on cisa.gov/ics.
## 3. RISK EVALUATION
Successful exploitation of thi
Ubuntu
GRUB 2 vulnerabilities
vendor_ubuntu·2021-06-18·CVSS 7.5
CVE-2021-20225 [HIGH] GRUB 2 vulnerabilities
Title: GRUB 2 vulnerabilities
Summary: Several security issues were fixed in GRUB 2.
Máté Kukri discovered that the acpi command in GRUB 2 allowed privileged
users to load crafted ACPI tables when secure boot is enabled. An attacker
could use this to bypass UEFI Secure Boot restrictions. (CVE-2020-14372)
Chris Coulson discovered that the rmmod command in GRUB 2 contained a use-
after-free vulnerability. A local attacker could use this to execute
arbitrary code and bypass UEFI Secure Boot restrictions. (CVE-2020-25632)
Chris Coulson discovered that a buffer overflow existed in the command line
parser in GRUB 2. A local attacker could use this to execute arbitrary code
and bypass UEFI Secure Boot restrictions. (CVE-2020-27749)
It was discovered that the cutmem command in GRUB 2 did not
Microsoft
A flaw was found in grub2 in versions prior to 2.06. Variable names present are expanded in the supplied command line into their corresponding variable contents using a 1kB stack buffer for temporary
vendor_msrc·2021-03-09·CVSS 6.7
CVE-2020-27749 [MEDIUM] CWE-121 A flaw was found in grub2 in versions prior to 2.06. Variable names present are expanded in the supplied command line into their corresponding variable contents using a 1kB stack buffer for temporary
A flaw was found in grub2 in versions prior to 2.06. Variable names present are expanded in the supplied command line into their corresponding variable contents using a 1kB stack buffer for temporary storage without sufficient bounds checking. If the function is called with a command line that references a variable with a sufficiently large payload it is possible to overflow the stack buffer corrupt the stack frame and control execution which could also circumvent Secure Boot protections. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers
Red Hat
grub2: Stack buffer overflow in grub_parser_split_cmdline()
vendor_redhat·2021-03-02·CVSS 6.7
CVE-2020-27749 [MEDIUM] CWE-121 grub2: Stack buffer overflow in grub_parser_split_cmdline()
grub2: Stack buffer overflow in grub_parser_split_cmdline()
A flaw was found in grub2 in versions prior to 2.06. Variable names present are expanded in the supplied command line into their corresponding variable contents, using a 1kB stack buffer for temporary storage, without sufficient bounds checking. If the function is called with a command line that references a variable with a sufficiently large payload, it is possible to overflow the stack buffer, corrupt the stack frame and control execution which could also circumvent Secure Boot protections. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
A flaw was found in grub2. Variable names present are expanded in the supplied command line into their corresponding variabl
Debian
CVE-2020-27749: grub2 - A flaw was found in grub2 in versions prior to 2.06. Variable names present are ...
vendor_debian·2020·CVSS 6.7
CVE-2020-27749 [MEDIUM] CVE-2020-27749: grub2 - A flaw was found in grub2 in versions prior to 2.06. Variable names present are ...
A flaw was found in grub2 in versions prior to 2.06. Variable names present are expanded in the supplied command line into their corresponding variable contents, using a 1kB stack buffer for temporary storage, without sufficient bounds checking. If the function is called with a command line that references a variable with a sufficiently large payload, it is possible to overflow the stack buffer, corrupt the stack frame and control execution which could also circumvent Secure Boot protections. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Scope: local
bookworm: resolved (fixed in 2.04-16)
bullseye: resolved (fixed in 2.04-16)
forky: resolved (fixed in 2.04-16)
sid: resolved (fixed in 2.04-16)
trixie: resolved (fixed in 2.
GHSA
GHSA-258p-xh3c-g68w: A flaw was found in grub2 in versions prior to 2
ghsa_unreviewed·2022-05-24
CVE-2020-27749 [HIGH] CWE-121 GHSA-258p-xh3c-g68w: A flaw was found in grub2 in versions prior to 2
A flaw was found in grub2 in versions prior to 2.06. Variable names present are expanded in the supplied command line into their corresponding variable contents, using a 1kB stack buffer for temporary storage, without sufficient bounds checking. If the function is called with a command line that references a variable with a sufficiently large payload, it is possible to overflow the stack buffer, corrupt the stack frame and control execution which could also circumvent Secure Boot protections. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
OSV
grub2-signed, grub2-unsigned vulnerabilities
osv·2021-06-18·CVSS 7.5
CVE-2020-14372 [HIGH] grub2-signed, grub2-unsigned vulnerabilities
grub2-signed, grub2-unsigned vulnerabilities
Máté Kukri discovered that the acpi command in GRUB 2 allowed privileged
users to load crafted ACPI tables when secure boot is enabled. An attacker
could use this to bypass UEFI Secure Boot restrictions. (CVE-2020-14372)
Chris Coulson discovered that the rmmod command in GRUB 2 contained a use-
after-free vulnerability. A local attacker could use this to execute
arbitrary code and bypass UEFI Secure Boot restrictions. (CVE-2020-25632)
Chris Coulson discovered that a buffer overflow existed in the command line
parser in GRUB 2. A local attacker could use this to execute arbitrary code
and bypass UEFI Secure Boot restrictions. (CVE-2020-27749)
It was discovered that the cutmem command in GRUB 2 did not honor secure
boot locking. A local attack
OSV
CVE-2020-27749: A flaw was found in grub2 in versions prior to 2
osv·2021-03-03·CVSS 6.7
CVE-2020-27749 [MEDIUM] CVE-2020-27749: A flaw was found in grub2 in versions prior to 2
A flaw was found in grub2 in versions prior to 2.06. Variable names present are expanded in the supplied command line into their corresponding variable contents, using a 1kB stack buffer for temporary storage, without sufficient bounds checking. If the function is called with a command line that references a variable with a sufficiently large payload, it is possible to overflow the stack buffer, corrupt the stack frame and control execution which could also circumvent Secure Boot protections. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Suricata
ET WEB_SPECIFIC_APPS Cacti SQL Injection Vulnerability tree.php leaf_id INSERT
suricata·2010-07-30·CVSS 7.5
CVE-2008-0785 [HIGH] ET WEB_SPECIFIC_APPS Cacti SQL Injection Vulnerability tree.php leaf_id INSERT
ET WEB_SPECIFIC_APPS Cacti SQL Injection Vulnerability tree.php leaf_id INSERT
Rule: alert http $EXTERNAL_NET any -> $HTTP_SERVERS any (msg:"ET WEB_SPECIFIC_APPS Cacti SQL Injection Vulnerability tree.php leaf_id INSERT"; flow:established,to_server; http.uri; content:"tree.php?"; nocase; content:"leaf_id="; nocase; content:"INSERT"; nocase; content:"INTO"; nocase; distance:0; reference:cve,CVE-2008-0785; reference:bugtraq,27749; classtype:web-application-attack; sid:2007895; rev:10; metadata:affected_product Web_Server_Applications, attack_target Web_Server, created_at 2010_07_30, deployment Datacenter, signature_severity Major, tag SQL_Injection, updated_at 2020_09_10, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_
Suricata
ET WEB_SPECIFIC_APPS Cacti SQL Injection Vulnerability tree.php leaf_id UNION SELECT
suricata·2010-07-30·CVSS 7.5
CVE-2008-0785 [HIGH] ET WEB_SPECIFIC_APPS Cacti SQL Injection Vulnerability tree.php leaf_id UNION SELECT
ET WEB_SPECIFIC_APPS Cacti SQL Injection Vulnerability tree.php leaf_id UNION SELECT
Rule: alert http $EXTERNAL_NET any -> $HTTP_SERVERS any (msg:"ET WEB_SPECIFIC_APPS Cacti SQL Injection Vulnerability tree.php leaf_id UNION SELECT"; flow:established,to_server; http.uri; content:"tree.php?"; nocase; content:"leaf_id="; nocase; content:"UNION"; nocase; content:"SELECT"; nocase; distance:0; reference:cve,CVE-2008-0785; reference:bugtraq,27749; classtype:web-application-attack; sid:2007894; rev:10; metadata:affected_product Web_Server_Applications, attack_target Web_Server, created_at 2010_07_30, deployment Datacenter, signature_severity Major, tag SQL_Injection, updated_at 2020_09_10, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Ex
Suricata
ET WEB_SPECIFIC_APPS Cacti SQL Injection Vulnerability tree.php leaf_id SELECT
suricata·2010-07-30·CVSS 7.5
CVE-2008-0785 [HIGH] ET WEB_SPECIFIC_APPS Cacti SQL Injection Vulnerability tree.php leaf_id SELECT
ET WEB_SPECIFIC_APPS Cacti SQL Injection Vulnerability tree.php leaf_id SELECT
Rule: alert http $EXTERNAL_NET any -> $HTTP_SERVERS any (msg:"ET WEB_SPECIFIC_APPS Cacti SQL Injection Vulnerability tree.php leaf_id SELECT"; flow:established,to_server; http.uri; content:"tree.php?"; nocase; content:"leaf_id="; nocase; content:"SELECT"; nocase; content:"FROM"; nocase; distance:0; reference:cve,CVE-2008-0785; reference:bugtraq,27749; classtype:web-application-attack; sid:2007893; rev:10; metadata:affected_product Web_Server_Applications, attack_target Web_Server, created_at 2010_07_30, deployment Datacenter, signature_severity Major, tag SQL_Injection, updated_at 2020_09_10, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_
Suricata
ET WEB_SPECIFIC_APPS Cacti SQL Injection Vulnerability tree.php leaf_id UPDATE
suricata·2010-07-30·CVSS 7.5
CVE-2008-0785 [HIGH] ET WEB_SPECIFIC_APPS Cacti SQL Injection Vulnerability tree.php leaf_id UPDATE
ET WEB_SPECIFIC_APPS Cacti SQL Injection Vulnerability tree.php leaf_id UPDATE
Rule: alert http $EXTERNAL_NET any -> $HTTP_SERVERS any (msg:"ET WEB_SPECIFIC_APPS Cacti SQL Injection Vulnerability tree.php leaf_id UPDATE"; flow:established,to_server; http.uri; content:"tree.php?"; nocase; content:"leaf_id="; nocase; content:"UPDATE"; nocase; content:"SET"; nocase; distance:0; reference:cve,CVE-2008-0785; reference:bugtraq,27749; classtype:web-application-attack; sid:2007897; rev:11; metadata:affected_product Web_Server_Applications, attack_target Web_Server, created_at 2010_07_30, deployment Datacenter, signature_severity Major, tag SQL_Injection, updated_at 2020_09_10, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_F
Suricata
ET WEB_SPECIFIC_APPS Cacti SQL Injection Vulnerability tree.php leaf_id DELETE
suricata·2010-07-30·CVSS 7.5
CVE-2008-0785 [HIGH] ET WEB_SPECIFIC_APPS Cacti SQL Injection Vulnerability tree.php leaf_id DELETE
ET WEB_SPECIFIC_APPS Cacti SQL Injection Vulnerability tree.php leaf_id DELETE
Rule: alert http $EXTERNAL_NET any -> $HTTP_SERVERS any (msg:"ET WEB_SPECIFIC_APPS Cacti SQL Injection Vulnerability tree.php leaf_id DELETE"; flow:established,to_server; http.uri; content:"tree.php?"; nocase; content:"leaf_id="; nocase; content:"DELETE"; nocase; content:"FROM"; nocase; distance:0; reference:cve,CVE-2008-0785; reference:bugtraq,27749; classtype:web-application-attack; sid:2007896; rev:10; metadata:affected_product Web_Server_Applications, attack_target Web_Server, created_at 2010_07_30, deployment Datacenter, signature_severity Major, tag SQL_Injection, updated_at 2020_09_10, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_
No public exploits indexed.
No writeups or analysis indexed.
https://bugzilla.redhat.com/show_bug.cgi?id=1899966https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZWZ36QK4IKU6MWDWNOOWKPH3WXZBHT2R/https://security.gentoo.org/glsa/202104-05https://security.netapp.com/advisory/ntap-20220325-0001/https://bugzilla.redhat.com/show_bug.cgi?id=1899966https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZWZ36QK4IKU6MWDWNOOWKPH3WXZBHT2R/https://security.gentoo.org/glsa/202104-05https://security.netapp.com/advisory/ntap-20220325-0001/
2021-03-03
Published