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amazonAmazonALAS-2016-666
HistoryMar 10, 2016 - 4:30 p.m.

Medium: sos

2016-03-1016:30:00
alas.aws.amazon.com
26
sos
temporary file
symbolic link
privilege escalation
cve-2015-7529
unix

CVSS2

4.6

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:L/Au:N/C:P/I:P/A:P

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

AI Score

7.7

Confidence

High

EPSS

0

Percentile

5.1%

Issue Overview:

An insecure temporary file use flaw was found in the way sos created certain sosreport files. A local attacker could possibly use this flaw to perform a symbolic link attack to reveal the contents of sosreport files, or in some cases modify arbitrary files and escalate their privileges on the system.

Affected Packages:

sos

Issue Correction:
Run yum update sos to update your system.

New Packages:

noarch:  
    sos-3.2-28.17.amzn1.noarch  
  
src:  
    sos-3.2-28.17.amzn1.src  

Additional References

Red Hat: CVE-2015-7529

Mitre: CVE-2015-7529

OSVersionArchitecturePackageVersionFilename
Amazon Linux1noarchsos< 3.2-28.17.amzn1sos-3.2-28.17.amzn1.noarch.rpm

CVSS2

4.6

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:L/Au:N/C:P/I:P/A:P

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

AI Score

7.7

Confidence

High

EPSS

0

Percentile

5.1%